Project Source 20000S Series New Construction 23-1/2-in x 29-1/2-in x 3-in Jamb White Vinyl Single-glazed Single Hung Window Half Screen IncludedThe Project Source vinyl utility single hung window with single glass and screen, is perfect for use in garages, porches, barns and steel buildings Durable, vinyl frame features welded seams for added reliability Bottom sash tilts in for easy cleaning from inside your home Heavy weight screen keeps out insects Actual size is 23 1 2 in width x 29 1 2 in height Nominal size is same as rough opening size 24 in width x 30 in height Rough opening 24 in