The frame can’t change anytime but doors can change anytime so for this reason the frame has to be strong and quality full. Actually, frames are the strongest part of a door, which is usually clamped with brick wall with clamps, if the frame is wider than 4″, 3 clamps for each side and one for the top. Thickness and width of the frame is usually 2.25″ x 5.75″. It has three parts. Two side parts are usually of the same length of seven feet. The top part of the frame is flexible in length, the minimum is 2.5′ and the maximum goes up to 10′. 3 parts are clamped together with a dovetail joint, top right and top left. Before we make the delivery, we usually stamp four braces to the frame to stabilize two angles at 90 degrees, the top, middle, and the bottom of the is stamped at the same width. The entrance part of the frame is usually decorated with the design bit, in the inner part of the frame which makes the frame look decorated and safer, in case someone bumps their head into it. 45-degree joints at the top right and the top left with a dovetail fitting stamp with a few nails and glue make the frame very strong and sharp looking. The exit part of the frame where the shutter is usually installed has a grove in it. All the way around from the left bottom to the right bottom, 0.5″ x 1.5″. This grove has one purpose mainly. When the door is shut and locked, no burglar can enter the premises without breaking the door. One side of the frame holds the shutter with four to five hinges. Sometimes even six, depending on the size and the weight of the door. The other side of the shutter usually has a door lock or a hatch bolt from the inside of the premises. Two types of frames are usually made, depending on the thickness and width. One type is 6 x 2.5, and the other is 11 x 2.5, and after finishing size will be 5.75 x 2.25, and the other is 10.75 x 2.25, is usually used for the decorative entrance doors, and 5.75′ can be used for both (entrance and internal doors). These frames are mainly made by using – Mahogani, Barma Teak, Chittagong Shilkorai, Teak Chamble, and Chittagong Teak.