Floor Level Straightedge Equivalents
Floor Level Straightedge Equivalents
(OP)
Hi all,
Is there a reference that describes a method for estimating the Floor Level Number similar to the Floor Flatness Straightedge Equivalent table given in ACI 117R-8?
I am looking at a hotel with measured floor slab slopes as high as 3% and a total relative floor level differential of about 5 inches over 200'.
The is pretty clearly beyond any reasonable specification but in speaking about it I would like to relate the floor levelness to typical published criteria for this application short of doing a statistical analysis at this time to obtain the actual FL number.
Thanks in advance.
Is there a reference that describes a method for estimating the Floor Level Number similar to the Floor Flatness Straightedge Equivalent table given in ACI 117R-8?
I am looking at a hotel with measured floor slab slopes as high as 3% and a total relative floor level differential of about 5 inches over 200'.
The is pretty clearly beyond any reasonable specification but in speaking about it I would like to relate the floor levelness to typical published criteria for this application short of doing a statistical analysis at this time to obtain the actual FL number.
Thanks in advance.






RE: Floor Level Straightedge Equivalents
Dik
RE: Floor Level Straightedge Equivalents
RE: Floor Level Straightedge Equivalents
In short, other than the 3/8" per 10 foot limitation on formed surfaces (4.5.3) i'm not finding much on Floor Levelness other than the ASTM E 1155 statistical method. It looks like the committee is trying to move completely away from the older straightedge method.
It would still be nice to have a recommended spec for floor levelness in different applications using the older convention (inches per 10 ft).
Thanks again.
RE: Floor Level Straightedge Equivalents
For the floor to vary 5" over a 200 foot length is ridiculous in my opinion, and I have done flatwork.
Mike McCann
MMC Engineering
RE: Floor Level Straightedge Equivalents
what is your ultimate goal in getting the FL number?
RE: Floor Level Straightedge Equivalents