Panel Board Blanks | McMaster-Carr

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Material

Plywood Grade

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Export Control Classification Number (ECCN)

EAR99

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U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

DFARS Specialty Metals

Exempt

Specifications Met

ANSI A208.2

BS 1088

CARB Compliant 17 CCR 93120

For Manufacturer

Mount Type

Maximum Temperature

Manufacturer Series

Minimum Temperature

Softwood Grade

No. 1 Premium Softwood

No. 2 Premium Softwood

Panel Cutout Width

3/4"

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156 Products

Plywood Sheets

Made of thin layers of wood glued together under heat and pressure, plywood sheets are durable, yet lightweight. The direction of the wood grain alternates with each layer—known as opposing grain—making these sheets strong enough for building ramps and shelves or repairing holes in floors and ceilings. Opposing grains also limit movement, keeping each layer from expanding or contracting too much—otherwise moisture could warp and split these sheets apart. All are made of real wood, so you can drill, saw, sand, paint, and stain them.

CDX Plywood—CDX-grade plywood sheets are best for applications that will be painted or covered by another material. They can be briefly exposed to moisture, such as during construction, but shouldn't be exposed long term. One side is C-grade, so it may have minor surface defects and knots. The other side is D-grade, which may have more defects and bigger knots.

Marine Plywood—Marine-grade plywood sheets meet BS 1088, an international standard for plywood made from water- and fungus-resistant hardwood. Often used to make boats, their layers are bonded with waterproof glue, so they won’t bubble, buckle, or delaminate with long-term exposure to weather and water. Boiling temperatures and steam aren’t a problem either. Compared to CDX plywood sheets with the same thickness, these sheets have thinner layers and more of them, making this plywood stronger and denser. Each layer is made from one piece of wood, so there are no gaps in the middle layers that could weaken the sheet or leave a rough edge when you cut or sand it. The outer layers have a finished appearance that doesn’t need to be painted.

3/4" Thick—For load-bearing applications, use ¾"-thick sheets.

			12" × 12"		12" × 24"		24" × 24"		24" × 36"		24" × 48"		36" × 48"		48" × 48"		48" × 96"
	Thk.	Thk. Tolerance		Each		Each		Each		Each		Each		Each		Each		Each
CDX Plywood



		3/8"	-1/8" to 0.125"	1125T511	00000	1125T512	00000	1125T513	00000	1125T514	000000	———	0	1125T515	000000	———	0	———	0


		1/2"	-1/8" to 0.125"	1125T516	0000	1125T517	0000	1125T518	00000	1125T519	00000	1125T611	000000	1125T521	00000	1125T613	000000	———	0
		3/4"	-1/8" to 0.125"	1125T522	0000	1125T523	00000	1125T524	00000	1125T525	00000	1125T612	00000	1125T526	00000	1125T614	00000	———	0


		Marine Plywood



				1/4"	-0.040" to 0.016"	1125T411	00000	1125T412	00000	1125T413	00000	1125T414	00000	1125T415	00000	1125T416	00000	1125T417	000000	1125T418	0000000


				3/8"	-0.050" to 0.016"	1125T21	00000	1125T22	00000	1125T23	00000	1125T24	00000	———	0	1125T25	00000	———	0	———	0
				1/2"	-0.065" to 0.020"	1125T31	00000	1125T32	00000	1125T33	00000	1125T34	00000	1125T426	00000	1125T35	000000	1125T427	000000	1125T428	000000
				3/4"	-0.080" to 0.028"	1125T41	00000	1125T42	00000	1125T43	00000	1125T44	00000	1125T429	000000	1125T45	000000	1125T431	000000	1125T432	000000
				1"	-0.065" to 0.035"	1125T419	00000	1125T421	00000	1125T422	00000	1125T423	000000	1125T424	000000	1125T425	000000	———	0	———	0

Medium Density Fiberboard Sheets

Also known as MDF, these fiberboard sheets are smoother, denser, and more uniform than real wood, so they are often used as spoilboard and shelves. They meet the indoor formaldehyde emission requirements of ANSI A208.2 and the California Air Resources Board (CARB).

	Thk. Tolerance		Each
12" × 12"



	1/4"	-0.005" to 0.005"	2726N61	00000


	3/8"	-0.005" to 0.005"	2726N11	0000
	1/2"	-0.005" to 0.005"	2726N12	0000
	3/4"	-0.005" to 0.005"	2726N13	00000
	1"	-0.005" to 0.005"	2726N79	00000


	12" × 24"



			1/4"	-0.005" to 0.005"	2726N62	0000


			3/8"	-0.005" to 0.005"	2726N21	00000
			1/2"	-0.005" to 0.005"	2726N22	00000
			3/4"	-0.005" to 0.005"	2726N23	00000
			1"	-0.005" to 0.005"	2726N81	00000


			12" × 72"



					1/4"	-0.005" to 0.005"	2726N63	00000


					3/8"	-0.005" to 0.005"	2726N69	00000
					1/2"	-0.005" to 0.005"	2726N73	00000
					3/4"	-0.005" to 0.005"	2726N76	00000
					1"	-0.005" to 0.005"	2726N82	00000


					24" × 24"



							1/4"	-0.005" to 0.005"	2726N64	00000


							3/8"	-0.005" to 0.005"	2726N31	00000
							1/2"	-0.005" to 0.005"	2726N32	00000
							3/4"	-0.005" to 0.005"	2726N33	00000
							1"	-0.005" to 0.005"	2726N83	00000


							24" × 36"



									1/4"	-0.005" to 0.005"	2726N65	00000


									3/8"	-0.005" to 0.005"	2726N41	00000
									1/2"	-0.005" to 0.005"	2726N42	00000
									3/4"	-0.005" to 0.005"	2726N43	00000
									1"	-0.005" to 0.005"	2726N84	00000


24" × 48"



									1/4"	-0.005" to 0.005"	2726N66	00000


									3/8"	-0.005" to 0.005"	2726N71	00000
									1/2"	-0.005" to 0.005"	2726N74	00000
									3/4"	-0.005" to 0.005"	2726N77	00000
									1"	-0.005" to 0.005"	2726N85	00000


									48" × 48"



									1/4"	-0.005" to 0.005"	2726N67	00000


									3/8"	-0.005" to 0.005"	2726N51	00000
									1/2"	-0.005" to 0.005"	2726N52	00000
									3/4"	-0.005" to 0.005"	2726N53	00000
									1"	-0.005" to 0.005"	2726N86	000000


									48" × 96"



									1/4"	-0.005" to 0.005"	2726N68	00000


									3/8"	-0.005" to 0.005"	2726N72	000000
									1/2"	-0.005" to 0.005"	2726N75	000000
									3/4"	-0.005" to 0.005"	2726N78	000000
									1"	-0.005" to 0.005"	2726N87	000000

Basswood Strips

Also known as linden, this basswood is moldable and lightweight, making it ideal for shipping boxes, crates, handles, and building models. It is one of the softest hardwoods and is easy to machine. Basswood won’t warp when exposed to humidity and temperature changes. While slightly heavier than balsa wood, these strips bend and curve more easily and are more durable.

Thk.	Lg.		1/2" Wide	2" Wide	4" Wide
1/16"	24"	7675N1	00000	00000	00000
1/8"	24"	7675N2	0000	0000	0000
1/4"	24"	7675N3	0000	0000	00000
3/8"	24"	7675N4	0000	0000	—

Balsa Wood Cores

Lighter in weight than any other wood, yet still strong, these balsa cores stiffen composite sandwiches without weighing them down. They resist damage from impact and repeated use. Because they don’t let heat or sound pass through quickly, these cores are good natural insulators. They also resist chemicals. All come from balsa trees grown in FSC (Forest Stewardship Council) certified forests.

Rigid

Rigid cores are often used in panels for partitions, industrial tanks, and other stiff structures.

Cannot Be Sold to Canada—They cannot be sold to Canada due to import regulations.

Thk.	Wd.	Lg.	Compressive Strength, psi	Temp. Range, ° F	Cannot Be Sold To		Each
1/4"	24"	48"	1,500	-100 to 325	Canada	7810N122	000000
3/8"	24"	48"	1,500	-100 to 325	Canada	7810N123	00000
1/2"	24"	48"	1,500	-100 to 325	Canada	7810N124	00000
5/8"	24"	48"	1,500	-100 to 325	Canada	7810N125	00000
3/4"	24"	48"	1,500	-100 to 325	Canada	7810N126	00000
1"	24"	48"	1,500	-100 to 325	Canada	7810N127	00000
2"	24"	48"	1,500	-100 to 325	Canada	7810N132	00000

Flexible with Fiberglass Fabric Reinforcement

Image of Product. Front orientation. Wood. Balsa Wood Cores, Flexible.

Flexible cores are best for forming complex shapes.

Cannot Be Sold to Canada—They cannot be sold to Canada due to import regulations.

Thk.	Wd.	Lg.	Compressive Strength, psi	Temp. Range, ° F	Cannot Be Sold To		Each
1/4"	24"	48"	1,500	-100 to 325	Canada	7810N111	000000
3/8"	24"	48"	1,500	-100 to 325	Canada	7810N112	00000
1/2"	24"	48"	1,500	-100 to 325	Canada	7810N113	00000
3/4"	24"	48"	1,500	-100 to 325	Canada	7810N115	00000
1"	24"	48"	1,500	-100 to 325	Canada	7810N116	00000

Balsa Wood Strips

Made of balsa, the lightest and softest of all wood.

Cannot Be Sold to Canada—These strips cannot be sold to Canada due to import regulations.

Thk.	Wd.	Lg.	Cannot Be Sold To		Each
1/8"	1/2"	36"	Canada	5068K111	00000
1/8"	1"	36"	Canada	5068K112	0000
1/8"	4"	24"	Canada	5068K113	0000
1/8"	4"	36"	Canada	5068K43	00000
1/8"	6"	36"	Canada	5068K51	00000
3/16"	1/2"	36"	Canada	5068K114	0000
3/16"	1"	36"	Canada	5068K115	0000
3/16"	4"	24"	Canada	5068K116	00000
3/16"	4"	36"	Canada	5068K117	00000
3/16"	6"	36"	Canada	5068K52	00000
1/4"	1/2"	36"	Canada	5068K118	0000
1/4"	1"	36"	Canada	5068K119	0000
1/4"	4"	24"	Canada	5068K121	00000
1/4"	4"	36"	Canada	5068K44	00000
1/4"	6"	36"	Canada	5068K53	00000
1/2"	1/2"	36"	Canada	5068K122	0000
1/2"	1"	36"	Canada	5068K123	0000
1/2"	4"	24"	Canada	5068K124	00000
1/2"	4"	36"	Canada	5068K45	00000
1/2"	6"	36"	Canada	5068K125	00000
1"	3"	6"	Canada	5068K126	0000
1"	4"	36"	Canada	5068K46	00000
2"	3"	6"	Canada	5068K127	0000
2"	3"	36"	Canada	5068K41	00000
3"	3"	6"	Canada	5068K42	00000

Synthetic Wood

Get the look of wood without having to worry about splintering or rotting. This UV-resistant synthetic wood can be used in direct sunlight and high-traffic applications, such as marine decking.

						6 ft. Long		12 ft. Long
	Thk.	Thk. Tolerance	Wd.	Color	Max. Temp., ° F		Each		Each
HDPE Synthetic Wood



		1/2"	-0.100" to 0.100"	8"	Brown	120	8506K38	000000	———	0


		3/4"	-0.100" to 0.100"	5 1/2"	Brown	120	8506K34	00000	8506K431	000000
		3/4"	-0.100" to 0.100"	5 1/2"	White	120	8506K432	00000	———	0
		7/8"	-0.100" to 0.100"	2 1/8"	Brown	120	8506K41	00000	———	0
		1 1/2"	-0.100" to 0.100"	3 1/2"	Brown	120	8506K36	00000	8506K438	00000
		1 1/2"	-0.100" to 0.100"	3 1/2"	White	120	8506K439	00000	———	0
		1 1/2"	-0.100" to 0.100"	5 1/2"	Brown	120	8506K37	00000	8506K44	000000
		1 1/2"	-0.100" to 0.100"	5 1/2"	Light Gray	120	8506K441	00000	———	0
		1 1/2"	-0.100" to 0.100"	7 1/2"	Brown	120	8506K43	00000	———	0
		1 1/2"	-0.100" to 0.100"	9 1/2"	Brown	120	8506K442	000000	8506K443	000000
		1 1/2"	-0.100" to 0.100"	9 1/2"	White	120	8506K444	000000	———	0

Circuit Breaker Box Filler Plates

Conceal live electrical components in circuit breaker boxes to prevent injury and damage. These filler plates snap into panel openings. They also have an adhesive strip, so they don’t move when you take the panel cover off.

For Panel Cutout Wd.	For Manufacturer (Series)	Mount Type	Ht.	Wd.	Dp.	Material	Flammability Rating		Each
3/4"	Square D (QO) Square D (QOB)	Snap In, Adhesive	3/8"	11/16"	2 9/16"	Plastic	UL 94 V-2	4448N11	00000
1"	Bryant Challenger Crouse-Hinds Cutler-Hammer (BR) General Electric Murray Siemens Square D (Homeline) Thomas & Betts Westinghouse	Snap In, Adhesive	3/8"	1"	2 9/16"	Plastic	UL 94 V-2	4448N12	0000

Wood Boards

Don’t knock the classics—these wood boards are a strong and affordable building material. Made of spruce, pine, or fir, they’re less dense and easier to drill and saw than hardwood, but still sturdy enough to make into crates and other load-bearing structures. Any knots are tight and spaced apart.

No. 1 Premium Softwood—No. 1 premium boards are the best grade available. They have minimal defects, so they’re good for applications where the appearance of the wood is important.

	Thk.	Thk. Tolerance	Wd.	Fabrication		12" Long	24" Long	36" Long	48" Long	60" Long	72" Long	96" Long
No. 2 Premium SPF Softwood



	1 × 4	3/4"	-0.125" to 0.125"	3 1/2"	Heat Treated	3577N136	00000	00000	00000	00000	00000	00000	00000


	2 × 4	1 1/2"	-0.125" to 0.125"	3 1/2"	Heat Treated	3577N134	0000	0000	0000	0000	0000	0000	0000
	2 × 6	1 1/2"	-0.125" to 0.125"	5 1/2"	Heat Treated	3577N135	0000	0000	0000	0000	0000	00000	00000


	No. 1 Premium White Fir



			2 × 4	1 1/2"	-0.125" to 0.125"	3 1/2"	Heat Treated	3577N2	0000	0000	0000	0000	0000	00000	00000