Jewish law only allows NATURAL materials, like plain wood. This is because, according to Jewish teachings, the body is to return to the earth so any items that may impede the process of decomposition are not allowed.
Only those caskets are air (and water) tight which are "sealer" caskets, meaning that they are provided with a rubber like sealing gasket between the lid and the base of the caskets. Usually only metal caskets can be sealer caskets.
"Glass sealer" caskets (protective caskets with an inner glass lid) are an older type of "sealer caskets" (caskets providing an air and watertight seal). Later (for example in the Gulf War) the remains of soldiers were shipped back in glassless "gasket sealer" caskets.
One can find caskets for sale at mortuaries and funeral supply stores, for example Costco. Caskets are also for sale at Sears, Walmart, and Caskets By Design.
Only those caskets are air (and water) tight which are "sealer" caskets, meaning that they are provided with a rubber like sealing gasket between the lid and the base of the caskets. Usually only metal caskets can be sealer caskets.
The traditional Jewish casket is made of plain, pine wood with no adornment except for the Star of David. More modern Jews have used caskets made of other materials WITH adornment and even flowers!
Jewish law specifies that the bodies of the dead must be returned to the earth. That's why they use plain wood caskets, so the body can decompose back into the ground and nothing can be done to the body that might impede decomposition.
Usually yes - as long as one compares caskets of similar design, similar thickness of wood and similar interiors.
In the United States, standard caskets for adults have a length between 80 and 83 inches. Industrially manufactured oversize caskets are up to 96" long. Hand crafted caskets can be even longer.
For metal caskets usually a crank. With old style wooden caskets, the lid often has to be unscrewed.
Hands on History - 2001 Caskets was released on: USA: 23 October 2004
Metal caskets are available in carbon steel, copper, bronze, and stainless steel. Carbon steel caskets are available in different gauges, ranging from 20 gauge (the thinnest) to 16 gauge (the thickest)
Luxury caskets often have a double lid, sometimes even a triple lid (the innermost being made of glass). In rare cases, caskets are even double walled (triple walled would be absolutely unusual), which means that the outer casket contains a complete inner casket, which can be taken out. Double walled caskets are much more heavy than double lid caskets, of course.