Illusion’s “teak and holly” floorboards are actually made from a Lonseal product (www.lonseal.com) made from their marine grade vinyl, which we laminated to an additional vinyl underlayment. We screwed four longitudinal and one athwartship teak strips to the original fiberglass cabin sole in the main salon, galley and nav station areas. These hold in place the six pieces of Lonseal laminate that Sally patterned to lie within the teak in the main cabin. In addition, we have separate pieces for the head, forepeak and next to the sail locker. So nine pieces in all. All are easily removeable when we need to access the hatches in the cabin sole. The pieces of Lonseal just sit between the teak strips. The Lonseal (with underlayment) is stiff enough so that even when heeled it never slides out of its place. Teak and Holly Lonseal comes in two versions. We got the non-skid version. The non-skid works great.
One interesting disadvantage of having the mast step be just above the cabin sole, is that the inevitable water that comes down the inside of the mast, from rain getting into the halyard slots, ends up on the floorboards, or even runs along the top of the fiberglass over the I-beam and gets into the area under the starboard settee.
We cut a piece of G10 to fit the inside of the mast at an angle, and tapped a hole for a plastic plumbing fitting just above the G10 so that the water coming down the inside of the mast can be routed through a piece of tubing into the bilge. This also keeps the mast step dry and eliminates corrosion at the step.