Adjustable sill and threshold

A sill assembly with an adjustable threshold to be installed onto a floor under an entry-door;

• the said sill threshold to be flush with a bottom of the entry-door comprising:
• (a) a housing with a front-foot, a back-foot, and two vertical supporting walls which form a U-shaped channel and accommodates two inner walls of a removable cap such that said cap inner walls are in direct contact with the vertical supporting walls, and wherein the housing includes a sloping top surface and the U-shaped channel houses adjustment screws;
• (b) a substrate that has a flat bottom surface and is tucked under said housing to support said housing;
• (c) the removable cap includes two outer walls and the two inner walls, configured to be inserted onto the housing;
• said cap is punched, in equal spacing, along a longitudinal axis of the removable cap, to form multiple screw-holes with countersinks;
• (d) multiple flat-headed cap-screws are mounted flush with the cap and inserted through the cap screw-holes to mate with the adjustment screws;
• (e) the U-shaped channel of the housing has multiple screw-holes which are tapped with female threads;
• (f) the substrate has multiple screw-holes which are tapped with female threads;
• (g) the adjustment screws include vertical straight threads at an upper portion thereof to mate with said cap-screws;
• each of said adjustment screws has a disc in a middle portion thereof to support the cap inner walls;
• said adjustment screws are fastened to the housing by fastening into the screw-holes of the U-shaped channel and the screw-holes of the substrate;
• and
• (h) two rubber gaskets are positioned in recessed channels located in the housing vertical supporting walls;
• each rubber gasket has two enlarged sides and a narrow neck which is secured with the recessed channel, so that the rubber gasket will not slip out.