To install 12 x 12 and larger tiles with a medium bed mortar the ntca recommends a u notch trowel between 3 8 x 3 4 x 9 16 and 25 64 x 3 4 x 19 32.
3 8 u notch best for mosiac floors.
Use this for 8 8 s and some of the 5 16 thick 12 12 builder grade tile.
The second is the spacing between teeth.
The larger the tile the larger the trowel.
The most common type of trowel for floors is the u notched trowel.
16 inch tiles need a 1 2 inch deep notch and anything over 24 inches should use a this thin set mortar is applied onto the wall or floor surface with a notched trowel according to tile type and size.
Mosaic installations up to 2 inches can use a 1 8 inch notch as can wall tiles of up to 4 inches as a general rule.
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Larger 24 inch natural stone.
This may also be a good trowel size for thicker 5 16 mosaics.
While i occasionally use glues with some.
Square notch trowels often have three numbers indicating the size and spacing of the notches.
With tile larger than 18 i ll either use the x 3 8 and back trowel the tile as well or use a 3 8 x 3 8 or x square or u notch.
The first number is the width of each tooth.
The third is the depth of the teeth.
Those are general guidelines and will work with most installations.
It s rare that i use this trowel size.
Smaller than 1 8 notch.
Tile trowels come in many shapes and sizes generally starting out from a 3 16 v notch up to the 1 2 square notch finding the right trowel for the job is quite simple when you know that generally speaking the trowel size should match up to the tile size the smaller the tile the smaller the trowel.
Four inch up to 8 inch tiles need a 1 4 to 3 16 inch notch trowel.
Anything bigger than what s listed.
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For example a 1 4 x 3 8 x 1 4 inch trowel has 1 4 inch wide 1 4 inch deep teeth spaced every 3 8 inches.
A trowel size smaller than a 1 8 square notch trowel is usually for glues.
Mosaic installations up to 2 inches can use a 1 8 inch notch as.
1 what size notch trowel for a 12 12 porcelain tile floor.
As a general rule mosaic tiles up to 2 inches wide benefit the most from trowels with notches that are 1 8 to 1 4 inch in size.
What size notch trowel for a 12 12 porcelain tile floor.
3 4 x 9 16 u notch.
1 4 x 3 8 square notch.
This can either be a literal u shaped notch or it all tile manufacturers offer a recommended trowel size.