I made a kitchen work table out of a single piece of hard maple as the top, about 5 feet by 15 inches by 1 inch. I cut dove tales in the long sides of the trestle about 1 inch deep and 1 inch wide at the bottom and 3/4 inch wide at the top, three sets of matching dovetails. Then I cut three pieces of hard maple to fit into the tails, the same length as the outside edges of the trestle. Then I placed the top, upside down, on my worktable, with the cross pieces in place in the trestle. I bored holes through the cross pieces into the top, counterscrewed the top in place and turned the whole thing over. When it was all finished, I slid the top out of the dove tails to carry it into the house and reinstalled it. Have been using it daily for about 4 years and it is still in good shape with occasional renewing of oil finish. When I need to move it very far or to another room or outside, I just slide the top off and move the two pieces. Maybe this would work for your situation.