How to Cover a Concrete Porch Floor With Wood

Written by dario saandvik
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How to Cover a Concrete Porch Floor With Wood
Wood flooring isn't just for the indoors. (porch image by MLProject from Fotolia.com)

Many homeowners improve the value of their homes with the durability, cleanliness, and beauty of natural wood flooring. The conversion to wood floors occurs most often indoors, but some homeowners may seek to match their indoor decor by also installing wood floors in enclosed porches. Many of these porches have unfinished concrete floors that can become cracked or discoloured, and with some care, a wooden floor installed over a concrete porch floor can not only improve the appearance of your porch, but can last a long time.

Skill level:
Moderately Challenging

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Things you need

  • Tape measure
  • 6mm polythene moisture barrier
  • Scissors
  • Saw
  • Nail gun
  • 1/2-inch plywood sheets
  • Wood glue
  • 1-inch concrete nails
  • 3/4-inch brads
  • Wide-planked wood floorboards

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Instructions

  1. 1

    Measure the clearance between the concrete and the bottom of the door that leads out to the porch. Measure in a few places along the door, with the door both open and shut. The shortest measurement is your maximum clearance (meaning that the floor installation can be no higher above the slab than that measurement, or else the door won't close). Use thinner plywood if you have less clearance, or use thicker if you have more and want more protection for your wood planks.

  2. 2

    Roll a layer of 6mm polythene moisture barrier onto the porch, covering the entire floor.

  3. 3

    Measure and cut a layer of 1/2-inch plywood to cover the entire floor, and lay it on top of the moisture barrier.

  4. 4

    Drive concrete nails through the plywood with the nail gun, directly into the concrete below, to secure the plywood and moisture barrier to the concrete. Insert a nail every foot or so around the edge of the plywood, and place a row of nails across the middle of each piece of plywood, to make sure that it is secured evenly.

  5. 5

    Measure and cut floorboards to fit on top of the plywood.

  6. 6

    Apply a layer of wood glue to the bottom of each board and lay it in place, starting from one wall and working toward the other. As soon as you have laid each board and fitted it next to its neighbour, drive a few brads in a line along the centre of the board to secure it to the plywood subfloor as the glue dries. The combination of glue and nails will ensure that the floor remains stable. Stay off the floor for a day or so, to allow the glue to dry undisturbed.

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