Asked by: Iuliia Brunnhuber
hobbies and interests woodworking

How do you repair a wooden porch column?

Last Updated: 16th June, 2020

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Here's what to do:
  1. Draw a line around the column about 2 inches above the rotted area and install a temporary brace under the deck, porch, or roof.
  2. Using a chisel and hammer or a Saws-All, chip out the damaged wood below that mark.
  3. Use a brush or spray bottle to coat preservative on the exposed bare wood.

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Similarly, you may ask, how do I keep my porch posts from rotting?

Here are some ways to protect your columns:

  1. Don't drill air holes in the bottom of the shafts.
  2. Priming & Painting the Shafts.
  3. Placing the column plinth on aluminum plinths or use of synthetic base.
  4. Use of a Recessed soffit for capital.
  5. Use copper flashing on capital.

Secondly, how do you keep wood from rotting outside? Tips for Preventing Wood Rot

  1. Always use decay-resistant or pressure-treated lumber for decks.
  2. When building an exterior project with wood, stain or paint all sides of each lumber piece before assembly.
  3. Don't lean anything against your siding, such as old plywood, tools, and ladders.

Secondly, how much does it cost to replace porch columns?

Install ornamental columns Costs. For your project in zip code 98104 with these options, the cost to install ornamental columns starts at $450.08-$630.21 per column. Your actual price will depend on job size, conditions, finish options you choose.

How do you fix dry rotted wood?

The dry rot repair process has six steps: Remove Dry Rot, Spray Fungicide, Apply Wood Hardener, Replace Damaged Wood with Epoxy, Sand Surface Smooth, Protect with Exterior Acrylic Primer and Paint.

Related Question Answers

Jianfu Kaspar

Professional

How do you replace a porch column?

To remove and replace a porch column:
Position a jack directly under the porch beam next to the column. Measure from the porch beam to the jack, and cut the 4×4 to just under this length. Position the post, and use the jack to raise the porch beam slightly until the old column can be removed.

Wanetta Yaglintsev

Explainer

Are my porch columns load bearing?

Look for a Visible Foundation. As load bearing porch columns are posts that help support weight, they should have a steady foundation. Note the area around the bottom of the porch column and see if there is any type of base.

Fadila Boehmer

Pundit

How do you repair a porch roof?

How to Repair a Porch Roof
  1. Remove any damaged shingles or felt paper. Many times when a porch roof is damaged, you will need to remove the damaged portions.
  2. Mark the damaged area and cut it out.
  3. Cut a piece of plywood that is the same as the area that you cut out.
  4. Cover the patch with felt paper.
  5. Replace the shingles.

Ihor Clapes

Pundit

How do you build a porch column?

  1. Step 1: Attach Boards Around Existing Columns. Measure height of your porch columns and cut 4- 1x6s to that size.
  2. Step 2: Attach Top 1×6 Trim. Cut 4 pieces of 1×6 @ ~7 1/2″ on the short side and ~9 inches on the long side with mitered angles on both ends.
  3. Step 3: Build Base Unit. From the 1×10 boards, cut 8- 36″ pieces.

Yattou Coles

Pundit

How much does it cost to repair a porch?

Porch Repair Cost Breakdown
On average, most homeowners can expect to pay between $1,100 and $1,300 for professional porch repair. This may seem like a lot, but it is far less than replacing or building your entire deck over. On the low-cost side, minor DIY repairs can cost as little as $100 for a few small areas.

Katarzyna Veizaga

Teacher

How do you protect wooden posts in the ground?

Double wrap the bottom of the post with Grace ice and water barrier. This stuff sticks to wood like super glue. Finish the wrap a couple inches above ground level. Do no seal the bottom of the post, the long grain end.

Adolf Dym

Teacher

Should I use 4x4 or 6x6 deck posts?

A short 4x4 can carry an awfully big load, and many deck builders use 6x6 posts as a standard, regardless of the height or load of the deck. Though the height of a deck is often questioned only in regard to the requirement for guards, it is a factor in determining the height or “span” of the posts.

Yizhong Chuhlov

Teacher

Will bleach stop wood rot?

To treat decay fungi, first eliminate the source of moisture (unless its dry rot). A dilute bleach spray will kill molds and mildew. If decay is extensive, replace the decayed wood. However, if lumber is allowed to soak in the wood preservative, it works even better.

Isard Degenhardt

Teacher

Will kilz stop wood rot?

You really can't "stop" dry rot - once the wood is rotted, that's it. You could alternatively add some metal braces to the wood that's intact. Other thoughts would be to "seal" the rotted parts with Kilz, primer and some oil paint.

Varduhi Kronmuller

Reviewer

How do you weatherproof wood?

There are three surefire ways to waterproof your wood for years to come.
  1. Use linseed or Tung oil to create a beautiful and protective hand-rubbed finish.
  2. Seal the wood with coating of polyurethane, varnish, or lacquer.
  3. Finish and waterproof wood simultaneously with a stain-sealant combo.

Tsvetko Bordas

Reviewer

What is the best wood for porch posts?

For economy or paint-grade, use fir or yellow pine. For high-end columns, use hardwoods such as birch, mahogany or white or red oak. As with any type of exterior wood, proper sealing and maintenance is required.

Estevan Fraysse

Reviewer

How long will untreated 2x4 last outside?

Some say that untreated 2×4's can last up to two years before showing signs of rot and others say it can last even longer. When deciding if you should you use an untreated 2×4 it depends greatly on the application, how much weather and sun it's exposed to and if it's making ground contact.

Sherron Talla

Reviewer

How big should porch columns be?

(30- to 46-cm) sidelights. Double columns spaced 7 to 8 feet (2.1 to 2.4 meters) apart frame the entrance, which is 5 to 6 ft. (1.5 to 1.8 m) wide. Two more outset columns spaced slightly less far apart than the center width complete the porch's breadth.

Malte Poveda

Supporter

Does paint stop wood from rotting?

Coatings that form a moisture-impervious film are effective in preventing decay if the seal where two pieces of wood are joined is kept intact. A well-maintained film of paint over the wood and good paint seals in the joints shed water, thus protecting wood by keeping it dry.

Lot Obermuller

Supporter

How do you wrap an iron porch post with wood?

Learn how to install a simple wood wrap to turn boring columns into cool architectural features.

  1. Step 1: Cut Boards to Length.
  2. Step 2: Cut and Install Bottom Blocking.
  3. Step 3: Cut and Install Top Blocking.
  4. Step 4: Nail On the 1x6s.
  5. Step 5: Add Decorative Trim.

Shad De Piedra

Beginner

How much does a column cost?

Cost to Install Ornamental Columns
Ornamental Columns Costs Zip Code
Basic Best
Ornamental Columns – Installation Cost $75.00 - $95.00 $145.00 - $160.00
Ornamental Columns – Total $300.00 - $333.00 $425.00 - $485.00
Ornamental Columns – Total Average Cost per lineal ft. $316.50 $455.00

Abdelrahim Ablyazov

Beginner

How much are fiberglass columns?

If you want something that comes with all the best features and is also a decent price, you will want a fiberglass or FRP column. These columns will range anywhere from $190 to the thousands (you are looking at some REALLY big columns for them to cost that much).

Shamraiz Pamo

Beginner

How much does it cost to fix wood rot?

An inexpensive one-component alternative is Minwax High Performance Wood Hardener, which costs $8 to $12 for a half-quart. If the rot covers a large and/or weight-bearing area, call a professional. On average, the cost to repair rotting wood ranges from $200 to $500 including parts and labor.

Umaima Indelli

Beginner

How much does it cost to put in a support beam?

Costs to install a steel beam range from $1,150 to $4,600, but will vary based on the size and type of steel beam you choose and the labor needed to install it. The more popular and cost-effective option, laminated veneer lumber (LVL) beams, ranges in price from $55 to $400, not including installation.