I am going to build a roof over an existing sandbox which is 12'x10'. How
many posts will be required for construction? I was thinking three posts on
the long end and two on the short end. Is this sufficient or could I
actually get by with four?
Thanks in advance.
Those 2xs, are they on 16" centers? Were you planning on parking a
truck up there, or do you just like the heavy, bulky look?
Will there be snow loads to contend with?
2x10 is standard for a 14' span to hold up a plywood and shingle flat
roof in house construction, but there you have 4 bearing WALLS. If you
want posts in the corners only, I would think about 4" pipe, buried at
least 4'. You're gonna need decent size beams from corner to corner.
How about picking up a roofing or framing book from the library for
ideas? Unless you get an answer here from a qualified architect or
engineer, you may want to think twice before building and risking
To the OP:
I would have no problem building something like this, but I have also framed
a 2-story addition (which has not yet fallen down :-))
What you want here is engineering advise. The missing elements from your
question suggest a certain ignorance (I don't mean that in a nasty way at
all). It would be afraid that a bad assumption would be made by the you (the
OP) or by a replying poster or something lost in the context of a
It's absolutely a a DIY project, but get some experienced hands-on (more
than a keyboard) help.
Why are we making a mountain out of a molehill? This is not a two story
addition or a parking structure. It is a simple shade structure for a
sandbox! I just wanted to know what what was reccomended for the span of the
2x10 . Do I need three or could I get by with two 4x4's.
What I suggest is that you go to your local lumberyard. They will tell
you what to do to meet codes. You really are asking people for
information that requires local climate knowledge, engineering ability,
and knowledge of local codes. Since you won't or can't give that info I
sure won't suggest anything.
Respectfully. Many people here are engineers or have professional
designations. If they give you bad advice it can harm them
professionally... So the ones who can most help are often silent if
there isn't a lot of info to work with.
Sometimes these roofs are simple -- sometimes they are not...
If the next door neighbour asked me that question I would know that it
might have to carry a heavy snow load and cope with -40 + 35
temperatures and that the posts would have to be sunk at least three
feet to prevent frost heaving etc.
You gave none of that info.
Keep the structure light.
4x4's at each corner will definitely keep it up in the air, but the lateral
loading is what you need to worry about. If the posts are rigidly embedded
in the ground and have some decent bracing at the top then it is certainly
possible to just use 4 of them (depends on the wood species and grade)
If you want 2 on each side then that would be fine too. In that case the
2x10 seems to be overkill.
In any case, checking with a local structural engineer who knows what sort
of wood you are using and what sorts of design loads you need to pay
attention to is a good idea. If you are incapable of figuring this out by
yourself, then a visit to a professional is in order.
On Thu, 2 Jun 2005 07:24:35 -0400, the inscrutable "George"
Because kids love to climb and swing? Because it provides shade?
Besides, it'll keep the kids out of the huge sand "catbox."
California's 4 Seasons: Fire, Flood, Drought, & Earthquake
http://www.diversify.com NoteSHADES(tm) glare guards
I guess, as Stephen said, it depends.
I have also seen sandbox roofs that can lower down to keep out critters,
cats especially, when not in use. That would be a lot of roof to lower and
raise. If they can do it here
http://rogerscentre.com/aboutrogerscentre/funfacts/ surely you could do a
12x10 raising and lowering roof! Think monster house. 4 steel guide posts,
anchored in concrete. Cables, motor, pulley, safety setup like garage door
opener has. In fact, you could probably cannibalize a couple of garage door
openers to do this. I guess I way off track. Anyway, have fun and be safe.
It sounds like a great place to create a grape arbor. Shade at
the correct time of the year and the leaves disappear when it is
time to worry about snow load, to say nothing for the bounty of
the grapes. You might even try making wine.
(top posted for your convenience)
Keep the whole world singing . . . .
DanG (remove the sevens)
Does the sandbox stay outside all year? Wind and snow? At that size I
guess you'd have to leave it out there all year, right? I'd be concerned
about snow and the weight of the snow/ice and whatever else would fall on
the top during the year. If you can wait a bit longer for the sun to come
around to a more summer-like (hotter) angle you might get away with a
slanted section of some material that would shade the sandbox for only the
hottest part of the day, leaving some air and sunshine into the box to dry
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.