The LO-PRO Patio Roof Risers come sized to fit either a nominal 4x beam (3.5" - 3.625") or a rough sawn 4x (4" - 4.125"). 

If your beam is narrower than either of these options, you can add shimming material to the back of the LO-PRO 'bucket' to make up the difference.

Our heavy duty, 1/4", structural, carbon steel is powder coated and typical for most environments. The powder coat will provide excellent resistance to the elements.

If you are in a high corrosion area, however, (e.g. by salt water) you will want to go with our 316 stainless steel option (which is also powder coated black).