I am redoing the landing area coming out of the front door to the driveway.
Right now there is a step that is almost 9" tall and I wish to make it about
6" or so and slope from there to the beginning of the driveway that is about
If it is an open area I can always cut some 1x and use it to create the form
work for the concrete. However, in this case, the area is between two
existing walls. If I cut two pieces of wood and fix it to the ends and do
the concrete, when it's done I cannot remove the wood anymore. Any idea how
I can control the slope of concrete when the edges are two walls?
Thanks in advance,
One thing I've done in similar situation is to form up each end a brick
(plus joint) width or length away from wall and then pour. After set,
backfill edges and lay brick or pavers along edges.
Another way is to simply pour the center section then use it and
freehand the narrow outer section w/ a formed edged between the sections.
OTOH, if you use foam board or similar behind form against wall there's
enough give to get a form out if you leave a portion to get ahold of for
starters and don't fit it too tightly at ends so it's got some wriggle room.
Then again, I've seen the forms left in place and when the finally
disintegrate, fill it in. Not my preferred choice, but in TN one saw
lots of stuff... :)
walls, cut to shape before placement. Stuff we used in stone age looked
and smelled like celotex sheathing, but with a higher tar content. Not
sure what the modern equivalent is. Of course, when it fails, you have a
place for leaks and ice to form, if that is a concern. Are the existing
walls on each side wood or brick? If brick, to keep the brickwork
pretty, cover the bottom couple feet with visqueen duct-taped in place.
After concrete cures, just trim off with a utility knife. If wood,
butting them up to concrete is not recommended, even with flashing in
between. Might want to consider forming up a sloped drain slot so the
wood stays dry.
A 3" fall in six feet is almost a ramp. You are going to want a stiff
concrete mix, and a pretty aggressive broom finish to guard against
slipping. Somebody will jump in here with what code says about that- I
haven't a clue.
Unless you have your heart set on DIY, I would have a couple local
flatwork guys estimate the job for you. An experienced finisher can
float that slope by eyeball better than you or I could with a screed
board running on rails, using nothing more than a string line on the
walls. If you do the demo work, any form building, put down the gravel
and the reinforcing fabric, and do the cleanup, it might not even be
very expensive. He could knock it out in a couple of hours.
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