Steel Decking

Question 1

A standard roof deck is installed to end lap approximately ___ inches over supports

Answer 1

2”

Question 2

What is Cellular Metal Deck?

Answer 2

Normal metal decking that has a flat piece of steel welded to the bottom of the panel.

Question 3

What is a “B” Deck Profile?

Answer 3

36” coverage with 1-1/2” x 6” Wide Rib (WR)

Question 4

What is a “F” Deck Profile?

Answer 4

36” or 30” coverage with 1-1/2” x 6” Intermediate Rib (IR)

Question 5

What is the packaging deck bundle weight limit to be applied to joists?

Answer 5

4,000lbs

Question 6

For decking, what is a safe working platform size?

Answer 6

12 feet wide

Question 7

What is the minimum uniform construction live load for a floor deck?

Answer 7

20psf

Question 8

If heavier motorized fishing equipment such as a power screed is needed for the deck, the uniform live load should be ___ or greater.

Answer 8

50psf

Question 9

Where should the end lap of decking be located? And what is the minimum length of end bearing that should be provided?

Answer 9

The end lap location should be adjusted so the center of the lapped portion occurs over the support/top chord member. The minimum length should be 1-1/2”

Question 10

What are the typical screw size for decking?

Answer 10

12s or 1/4” diameter with a special drill point.

Question 11

When are weld washers nor recommended for deck thicknesses of what gauge or thickness?

Answer 11

0.028 inches thick
22 gauge

Question 12

What plate thickness is required for covering a dent or an 8” maximum hole diameter in decking?

Answer 12

0.045 plate

Question 13

For dents or holes greater than a rib (over 8” to 13” diameter or width), it is advisable to use a_____ minimum plate.

Answer 13

0.057”

Question 14

When aligning the edge of steel deck, the installer should____

Answer 14

kneel

Question 15

A roof steel deck with an opening of 6” long will require reinforcement when ___ webs have been removed.

Answer 15

Three

Question 16

The connector, that is used to mechanically lock concrete and steel together to carry a floor load, is referred to as a _____ .

Answer 16

Shear Lug

Question 17

An extra heavy duty non-composite form deck with a nominal depth of 1-5/16” has a weight range of _____

Answer 17

1psf to 2.8 psf

Question 18

A good working weld develops its strength by holding _____.

Answer 18

Around the perimeter.

Question 19

Steel decks are usually less than ____ feet long.

Answer 19

40

Question 20

In order to reduce the possibility of the deck side opening, concrete should be placed in a direction so that the weight is first applied to the _______.

Answer 20

Top sheet at the side lap.