The lines should be.
How to replace floor boards on a porch.
After all the old decking and nails have been removed pull a string or extend a straight board on edge across the floor joists to make sure the joists haven t sagged.
Replace a porch column by measuring and marking new column for cutting make sure you mimic your existing porch columns in design.
Cut two lengthwise lines through one of the rotten boards so you can pry it out.
Set the cutting depth of a circular saw to the thickness of one of the porch flooring boards.
Use a rubber mallet or a scrap of the flooring as a protective block when tapping the floor boards together.
Make sure the porch floor has a slight slope to it between 1 8 and per linear foot for tongue and groove floors.
Replace the flooring step 1.
Since you ll be cutting random length replacement boards buy the longest boards you can transport.
Remove a board cut it with a circular saw and smell the wood to identify the species.
Rotten porch board are a big issue with historic homes.
Ask this old house general contractor tom silva fixes a front porch by replacing a deck board.
We used a rough cut 4 4 post as the jacking piece between the jack and the porch header.
Ask your lumberyard to cut a scrap from each species and match the smell to your own board.
Measure the distance from the top of the column to the porch floor.
I then slowly jacked that section of the porch up off the old flooring.
In order to do this we removed the flooring up to the column and then placed a 20 ton hydraulic bottle jack on top of the brick foundation under the porch.
They ll yield less waste.
You can also insert a long board between the decking and joists to pry the old deck boards loose.
If the porch is deeper than 8 use a slope closer to 1 8 per foot to avoid a pronounced slant if the porch floor isn t tongue and groove allow at least between new or replacement boards as you lay them to permit water to flow through the decking.
You only need to cut a board in half if it has no neighbor that has been removed.
Purchase new flooring that matches the dimensions of the existing porch flooring.
Scrape the grooves and tongues of the exposed boards with a 5 in 1 scraping tool or use an oscillating tool with a sanding or scraping accessory.
Subscribe to this old house.
After the old flooring has been removed using a crow bar replace any rotten floor joists with treated lumber before installing the flooring.
Pressure treated pine has a sweet smell cedar an aromatic smell and redwood a more pungent smell.
In the video we will show techniques to replace tongue and groove porch boards both in the middle and.