After scribing the two poles onto some cardboard, the template was transferred to the OSB sheet.

A look from the other side. You can see the full pole outline, as well as the partial pole profile on the left.

The cutouts were made with a reciprocating saw.

A dry fit before laying the construction adhesive.

To get the piece to fit around the pole, the straight piece fitting between the poles was cut off. Look closely between the poles and notice that piece missing.

Then that little piece was placed between the poles for a complete look. Everything lines up nicely. Time to lift the two pieces and lay down some adhesive.

Both pieces are glued down and screwed.

The landing is officially finished.