Difference between revisions of "Install a Plinth Block at a Door"

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A plinth block is an interior trim accent that widens a section of the baseboards around a wall or doorway, with a look similar to the supports on a classical column. Despite their ornate appearance, plinth blocks are fairly simple to install. After you’ve measured your door frame and chosen a look for the molding, cut your raw materials to the right shape and size, fasten them down and apply a fresh coat of paint so they blend in seamlessly with the rest of the trim.
 
A plinth block is an interior trim accent that widens a section of the baseboards around a wall or doorway, with a look similar to the supports on a classical column. Despite their ornate appearance, plinth blocks are fairly simple to install. After you’ve measured your door frame and chosen a look for the molding, cut your raw materials to the right shape and size, fasten them down and apply a fresh coat of paint so they blend in seamlessly with the rest of the trim.
[[Category:Home Decorating]]
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[[Category: Home Decorating]]
  
 
== Steps ==
 
== Steps ==
 
=== Installing Prepared Blocks ===
 
=== Installing Prepared Blocks ===
#Remove the old trim. Installing plinth blocks will be easiest if there’s nothing to get in the way. Score the edges of the casing where it meets the wall with a utility knife, then pry it up using a pry bar or putty knife. You can either replace the entire casing this way or carve out the lower section of the trim to make room for the blocks.<ref>http://www.kelleher.com/documents/InstallWindow-DoorMouldings.pdf</ref>
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#Remove the old trim. Installing plinth blocks will be easiest if there’s nothing to get in the way. Score the edges of the casing where it meets the wall with a utility knife, then pry it up using a pry bar or putty knife. You can either replace the entire casing this way or carve out the lower section of the trim to make room for the blocks.<ref name="rf1">http://www.kelleher.com/documents/InstallWindow-DoorMouldings.pdf</ref>
 
#*If you choose to remove the casing completely, you’ll need to replace it with new trim that lines up properly with the plinth blocks.
 
#*If you choose to remove the casing completely, you’ll need to replace it with new trim that lines up properly with the plinth blocks.
 
#*Make your cuts carefully to ensure that the edges of the trim above the plinth block come out even.
 
#*Make your cuts carefully to ensure that the edges of the trim above the plinth block come out even.
#Install directly over the existing trim. Alternatively, you can fit blocks over the trim that’s already in place. Just adjust the width and thickness of the paneling accordingly when you measure and saw. In this case, your plinth blocks will be more like a facade, and probably only need to be cut about half as thick as they would be if you were embedding them into the casing.<ref>http://extremehowto.com/plinth-blocks/?page=all</ref>
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#Install directly over the existing trim. Alternatively, you can fit blocks over the trim that’s already in place. Just adjust the width and thickness of the paneling accordingly when you measure and saw. In this case, your plinth blocks will be more like a facade, and probably only need to be cut about half as thick as they would be if you were embedding them into the casing.<ref name="rf2">http://extremehowto.com/plinth-blocks/?page=all</ref>
 
#*You'll have the most success installing plinth blocks over trim that's perfectly flat, without any grooves, contouring or other detailing that will make the blocks difficult to fit.
 
#*You'll have the most success installing plinth blocks over trim that's perfectly flat, without any grooves, contouring or other detailing that will make the blocks difficult to fit.
#Use adhesive to hold the blocks in place. Spread a thin layer of construction adhesive to the backside of the block, then carefully line up the edges with the trim. When the blocks are perfectly aligned and in the right position, slide them into the blank slots you cut into the casing. Keep applying pressure to the blocks until they’re glued down securely.<ref>http://stonehavenlife.com/simple-door-casing-plinth-blocks/</ref>
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#Use adhesive to hold the blocks in place. Spread a thin layer of construction adhesive to the backside of the block, then carefully line up the edges with the trim. When the blocks are perfectly aligned and in the right position, slide them into the blank slots you cut into the casing. Keep applying pressure to the blocks until they’re glued down securely.<ref name="rf3">http://stonehavenlife.com/simple-door-casing-plinth-blocks/</ref>
 
#*If you accidentally misalign the blocks on the first attempt, pull them off from the corner and try again with a fresh dab of adhesive.
 
#*If you accidentally misalign the blocks on the first attempt, pull them off from the corner and try again with a fresh dab of adhesive.
#Fasten the blocks. The adhesive will keep the blocks right where you want them, but it won’t be strong enough to hold them permanently. Once you’re satisfied with the position of your plinth blocks, nail them down gently. It may help to pre-drill the blocks with holes that match the size of the nails you’ll be using.<ref>http://www.kelleher.com/documents/InstallWindow-DoorMouldings.pdf</ref>
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#Fasten the blocks. The adhesive will keep the blocks right where you want them, but it won’t be strong enough to hold them permanently. Once you’re satisfied with the position of your plinth blocks, nail them down gently. It may help to pre-drill the blocks with holes that match the size of the nails you’ll be using.<ref name="rf1" />
 
#*It’s important that the nails be slightly recessed so that you’ll have room to plug them later.
 
#*It’s important that the nails be slightly recessed so that you’ll have room to plug them later.
#*Nail into the solid framing behind the trim whenever possible. This will provide greater security and keep the blocks from coming loose.<ref>http://extremehowto.com/plinth-blocks/?page=all</ref>
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#*Nail into the solid framing behind the trim whenever possible. This will provide greater security and keep the blocks from coming loose.<ref name="rf2" />
#Finish the blocks with spackle and paint. Once the blocks have been fitted and fastened, all that’s left to to do is blend them in with the rest of the casing. Fill in the nail holes with a small amount of caulk or spackling, then brush on a coat of primer before painting the blocks to match the trim. Enjoy the sophisticated look of your new molding!<ref>http://www.thehandymansdaughter.com/2015/07/14/add-plinth-blocks-to-door-trim-for-a-finished-look/</ref>
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#Finish the blocks with spackle and paint. Once the blocks have been fitted and fastened, all that’s left to to do is blend them in with the rest of the casing. Fill in the nail holes with a small amount of caulk or spackling, then brush on a coat of primer before painting the blocks to match the trim. Enjoy the sophisticated look of your new molding!<ref name="rf4">http://www.thehandymansdaughter.com/2015/07/14/add-plinth-blocks-to-door-trim-for-a-finished-look/</ref>
#*Sand the spackling after it dries to make the surface of the blocks smooth and level.<ref>http://www.home-repair-central.com/sanding-spackle.html</ref>
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#*Sand the spackling after it dries to make the surface of the blocks smooth and level.<ref name="rf5">http://www.home-repair-central.com/sanding-spackle.html</ref>
 
#*Applying a few strips of painter’s tape to the wall around the door jamb will allow you to work your brush all the way into the edges of the blocks.
 
#*Applying a few strips of painter’s tape to the wall around the door jamb will allow you to work your brush all the way into the edges of the blocks.
 
=== Making and Detailing Blocks ===
 
=== Making and Detailing Blocks ===
#Cut your raw wood to the appropriate size. Keep in mind that a plinth block is there to offset the rest of the trim around the door, so it needs to be slightly larger overall. Measure (and re-confirm) the trim dimensions and add ½” to 1” (1.25 to 2.5cm) to each. Use a table saw to cut the wood, making sure the edges are clean and precise.<ref>http://stonehavenlife.com/simple-door-casing-plinth-blocks/</ref>
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#Cut your raw wood to the appropriate size. Keep in mind that a plinth block is there to offset the rest of the trim around the door, so it needs to be slightly larger overall. Measure (and re-confirm) the trim dimensions and add ½” to 1” (1.25 to 2.5cm) to each. Use a table saw to cut the wood, making sure the edges are clean and precise.<ref name="rf3" />
 
#*Materials like 5/4 trim or MDF paneling are typically recommended for molding projects.
 
#*Materials like 5/4 trim or MDF paneling are typically recommended for molding projects.
 
#*It may be necessary to glue two or more pieces of wood together to achieve the desired thickness.
 
#*It may be necessary to glue two or more pieces of wood together to achieve the desired thickness.
#Rout or add other details to the block. If you have access to a handheld or table-mounted router, you can use it to etch shallow grooves or other embellishments into the upper section of the plinth blocks. Otherwise, a planer or bevel will be useful for creating sleek, angled edges. Feel free to get as elaborate or as minimal with your plinth blocks as you like.<ref>http://stonehavenlife.com/simple-door-casing-plinth-blocks/</ref>
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#Rout or add other details to the block. If you have access to a handheld or table-mounted router, you can use it to etch shallow grooves or other embellishments into the upper section of the plinth blocks. Otherwise, a planer or bevel will be useful for creating sleek, angled edges. Feel free to get as elaborate or as minimal with your plinth blocks as you like.<ref name="rf3" />
#*Hold the blocks firmly in place with a vice or table clamp to avoid making any sloppy mistakes.<ref>http://www.homedepot.com/catalog/pdfImages/67/674425c4-12f8-4f13-836d-ca4cc2860c13.pdf</ref>
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#*Hold the blocks firmly in place with a vice or table clamp to avoid making any sloppy mistakes.<ref name="rf6">http://www.homedepot.com/catalog/pdfImages/67/674425c4-12f8-4f13-836d-ca4cc2860c13.pdf</ref>
 
#*Routing and other decorative elements don’t offer any enhanced function—they’re simply there to improve the look of the molding.
 
#*Routing and other decorative elements don’t offer any enhanced function—they’re simply there to improve the look of the molding.
 
#Make any last adjustments as needed. Clean up the edges of the freshly cut panels. It will be helpful to perform a quick mockup with the loose blocks to gauge whether the dimensions are correct in relation to the door jambs. If necessary, saw the blocks down another ⅛” to ¼” (.3 to .6cm) until they match the width of the trim without looking too bulky.
 
#Make any last adjustments as needed. Clean up the edges of the freshly cut panels. It will be helpful to perform a quick mockup with the loose blocks to gauge whether the dimensions are correct in relation to the door jambs. If necessary, saw the blocks down another ⅛” to ¼” (.3 to .6cm) until they match the width of the trim without looking too bulky.
#*Smooth out rough spots and imperfections using a sheet of low-grit sandpaper.<ref>http://extremehowto.com/plinth-blocks/?page=all</ref>
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#*Smooth out rough spots and imperfections using a sheet of low-grit sandpaper.<ref name="rf2" />
 
#*When adjusting the height, always make follow up cuts to the bottom of the block so you don’t interfere with the routing or beveling.
 
#*When adjusting the height, always make follow up cuts to the bottom of the block so you don’t interfere with the routing or beveling.
#Mark the edges of the plinth blocks. Notch the blocks with a pencil to indicate the reveal (the small lip that protrudes from the casing), the top and bottom and which side of the doorway they should go on. This will make it easier to keep the separate components organized and assemble everything efficiently when the time comes.<ref>http://extremehowto.com/plinth-blocks/?page=all</ref>
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#Mark the edges of the plinth blocks. Notch the blocks with a pencil to indicate the reveal (the small lip that protrudes from the casing), the top and bottom and which side of the doorway they should go on. This will make it easier to keep the separate components organized and assemble everything efficiently when the time comes.<ref name="rf2" />
#*In most cases, plinth blocks should be wider and deeper than the casing by at least ⅛” (.3cm).<ref>http://www.kelleher.com/documents/InstallWindow-DoorMouldings.pdf</ref>
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#*In most cases, plinth blocks should be wider and deeper than the casing by at least ⅛” (.3cm).<ref name="rf1" />
 
#*Don’t worry about marking up the blocks too much—you’ll be painting over them before the project is finished. Make whatever notes will help you install the blocks with precision.
 
#*Don’t worry about marking up the blocks too much—you’ll be painting over them before the project is finished. Make whatever notes will help you install the blocks with precision.
 
=== Choosing the Right Blocks for Your Doorway ===
 
=== Choosing the Right Blocks for Your Doorway ===
#Measure your door casing. Unless you’re putting in new trim from scratch, the plinth block will fit right over the casing you already have in place with little difficulty. Stretch your tape measure across the bottom of the door jambs horizontally, then measure the depth of the trim to where it meets the wall. Write these dimensions down so you’ll be able to refer to them later during the fitting and installation phases.<ref>http://www.ronhazelton.com/projects/how_to_make_fancy_moldings_and_trim</ref>
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#Measure your door casing. Unless you’re putting in new trim from scratch, the plinth block will fit right over the casing you already have in place with little difficulty. Stretch your tape measure across the bottom of the door jambs horizontally, then measure the depth of the trim to where it meets the wall. Write these dimensions down so you’ll be able to refer to them later during the fitting and installation phases.<ref name="rf7">http://www.ronhazelton.com/projects/how_to_make_fancy_moldings_and_trim</ref>
 
#*As the old saying goes, “Measure twice, cut once.” If you want your plinth blocks to fit naturally, it’s essential that you take down your measurements as accurately as possible.
 
#*As the old saying goes, “Measure twice, cut once.” If you want your plinth blocks to fit naturally, it’s essential that you take down your measurements as accurately as possible.
#Buy precut plinth blocks that fit your trim. Most home improvement stores sell prefabricated plinth blocks that can easily be installed over your door’s existing trim. For many people, purchasing readymade blocks will be the simplest option. These blocks tend to come in standard sizes, so there will be no need to do a lot of guesswork if your home is already outfitted with a conventional trim style.<ref>http://extremehowto.com/plinth-blocks/?page=all</ref>
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#Buy precut plinth blocks that fit your trim. Most home improvement stores sell prefabricated plinth blocks that can easily be installed over your door’s existing trim. For many people, purchasing readymade blocks will be the simplest option. These blocks tend to come in standard sizes, so there will be no need to do a lot of guesswork if your home is already outfitted with a conventional trim style.<ref name="rf2" />
 
#*Talk to a store representative or contractor if you have any questions about how to install plinth blocks in your home.
 
#*Talk to a store representative or contractor if you have any questions about how to install plinth blocks in your home.
#*One downside of using prefab plinths is you’ll be limited in your style selection. Most commercial blocks will either be of Victorian influence or feature basic routing or beveling.<ref>http://www.thejoyofmoldings.com/about-plinth-blocks/</ref>
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#*One downside of using prefab plinths is you’ll be limited in your style selection. Most commercial blocks will either be of Victorian influence or feature basic routing or beveling.<ref name="rf8">http://www.thejoyofmoldings.com/about-plinth-blocks/</ref>
#Decide on a style for custom plinth blocks. If you’d rather fashion the plinth blocks yourself, you’ll have more say over the look of the finished product. Think about how subtle or ornate you’d like the moldings to be, then settle on a specific design that matches your sensibilities. Your blocks might utilize smooth, angled edges, a grooved face or simply stand out in relief from the door jamb.<ref>http://www.thejoyofmoldings.com/about-plinth-blocks/</ref>
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#Decide on a style for custom plinth blocks. If you’d rather fashion the plinth blocks yourself, you’ll have more say over the look of the finished product. Think about how subtle or ornate you’d like the moldings to be, then settle on a specific design that matches your sensibilities. Your blocks might utilize smooth, angled edges, a grooved face or simply stand out in relief from the door jamb.<ref name="rf8" />
#*Ideally, the style of your plinth blocks should go with the rest of your home’s trim and general decor.<ref>http://www.ronhazelton.com/projects/how_to_make_fancy_moldings_and_trim</ref>
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#*Ideally, the style of your plinth blocks should go with the rest of your home’s trim and general decor.<ref name="rf7" />
 
#*Unless you’re an experienced woodworker, it will probably be a good idea to stick to simple shapes and designs.
 
#*Unless you’re an experienced woodworker, it will probably be a good idea to stick to simple shapes and designs.