Float finish A textured concrete finish achieved by using a wood or magnesium tool called a "float" to smooth out screed ridges and embed large stones.
Floating is done before troweling and leaves a slightly coarse, matte texture. It helps open up the concrete surface to allow excess bleed water to escape, preventing the top layer from scaling off later. For some municipal or heavy-pedestrian areas, a coarse float finish is preferred for its natural, slip-resistant grip.
Frequently Asked Questions About Float finish
What is a float finish?
A texture produced with a wood or magnesium float that smooths screed ridges and pushes coarse aggregate below the surface.
When is floating done?
After screeding and before troweling, once the initial bleed water has left the surface.
Why is floating important?
It opens the surface so remaining bleed water can escape, which helps prevent scaling and delamination later.
Can a float finish be the final texture?
In some settings yes, since the coarse matte texture is naturally slip-resistant, though public sidewalks generally require the broom finish.