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Spruce 7/8 X Nominal 4-1/2

$35.75/Foot
Price Includes GST
Part# 02-78412
Thickness (In.)Width (In.)Part Number
7/84-1/202-78412

Overview

Note: Wood fulfill from a U.S. distribution facility - Expect a lead time of approximately 90 days for fulfillment.


Thousands of feet of S2S aircraft quality spruce are stocked in our Corona, CA. warehouse. Orders for spars, spruce kits and capstrip can usually be shipped within three weeks after receipt of order. Spars wider than 6" must be milled from 8" specially selected stock which requires a long and indefinite lead time. Prices on request. Spruce and tubing kits may be combined with plywood and other building supplies for a single truck delivery charge.

NOTICE
We supply only certified aircraft grade spruce. Do not accept lower grades of spruce for lower prices in your project. It is no bargain. Demand top quality. No Packaging Charges on Spruce

Metric Ordering Information
Spruce can be cut to metric sizes upon request only as special order, non cancelable and non refundable.
Using our current part numbers please select one size greater than desired and at check out in "Special Instructions" advise exact metric dimensions needed.

General Ordering Information
Our spars are available either S2S (surfaced 2 sides, top & bottom, with rough edges in 4" & 6" nominal width) or S4S (surfaced all 4 sides to thickness & width). Prices in table below are for S4S spars. If S2S is desired so builder can trim to exact width, specify S2S and use 4" or 6" width prices from table. Request quote on spar widths wider than 6". Spars for certificated aircraft such as Aeronca, Stearman, Taylorcraft and Piper are available and may be priced from the table. Since many of these early aircraft were “handmade”, the spars are often not uniform in size for a particular model. Therefore, the finished net dimensions should be specified when ordering replacement spars. Please price to nearest fraction. When ordering either spars or capstrip, designate the thickness first, then the width and length. Examples: 3/4"T x 4 1/4"W x 14’L spar; 1/4"T x 1/2"W x 5’L capstrip.

For additional technical information refer to a complete reprint of spruce specification MIL-S 6073 and plywood specification MIL-P-6070. See Documents.

Faster Delivery can be assured if guidelines regarding minimum acceptable lengths are provided. Orders are often delayed awaiting delivery of lumber to the even footage specified whereas shipment could be made if the minimum usable lengths were indicated. Example: 3/4" nominal 6" x 12' (131-1/2" min.)

Reference Chart


Thick
(Inches)
WIDTH (Inches)
2-3/4
3
3-1/4
3-3/8
3-1/2
3-3/4
4
1/8
02-18234
02-183
02-18314
-
02-18312
02-18334
02-184
3/16
02-316234
02-3163
02-316314
-
02-316312
02-316334
02-3164
1/4
02-14234
02-143
02-14314
02-14338
02-14312
02-14334
02-144
5/16
02-516234
02-5163
02-516314
-
02-516312
02-516334
02-5164
3/8
02-38234
02-383
02-38314
-
02-38312
02-38334
02-384
1/2
02-12234
02-123
02-12314
-
02-12312
02-12334
02-124
5/8
02-58234
02-583
02-58314
-
02-58312
02-58334
02-584
11/16
02-1116234
02-11163
02-1116314
-
02-1116312
02-1116334
02-11164
3/4
02-34234
02-343
02-34314
02-34338
02-34312
02-34334
02-344
13/16
02-1316234
02-13163
02-1316314
-
02-1316312
02-1316334
02-13164
7/8
2-78234
02-783
02-78314
-
02-78312
02-78334
02-784
15/16
02-1516234
02-15163
02-1516314
-
02-1516312
02-1516334
02-15164
1
02-14810
02-13
02-1314
-
02-1312
02-1334
02-14
1-1/8
02-118234
02-1183
02-118314
-
02-118312
02-118334
02-1184
1-1/4
02-114234
02-1143
02-114314
-
02-114312
02-114334
02-1144
1-1/2
02-112234
02-1123
02-112314
-
02-112312
02-112334
02-1124
1-5/8
-
02-1583
-
-
-
02-158334
-


Thick
(Inches)
WIDTH (Inches)
4-1/4
4-1/2
4-3/4
5
5-1/4
5-1/2
5-3/4
6
1/8
02-18414
02-18412
02-18434
02-185
02-18514
02-18512
02-18534
02-186
3/16
02-316414
02-316412
02-316434
02-3165
02-316514
02-316512
02-316534
02-3166
1/4
02-14414
02-14412
02-14434
02-145
02-14514
02-14512
02-14534
02-146
5/16
02-516414
02-516412
02-516434
02-5165
02-516514
02-516512
02-516534
02-5166
3/8
02-38414
02-38412
02-38434
02-385
02-38514
02-38512
02-38534
02-386
1/2
02-12414
02-12412
02-12434
02-125
02-12514
02-12512
02-12534
02-126
5/8
02-58414
02-58412
02-58434
02-585
02-58514
02-58512
02-58534
02-586
11/16
02-1116414
02-1116412
02-1116434
02-11165
02-1116514
02-1116512
02-1116534
02-11166
3/4
02-34414
02-34412
02-34434
02-345
02-34514
02-34512
02-34534
02-346
13/16
02-1316414
02-1316412
02-1316434
02-13165
02-1316514
02-1316512
02-1316534
02-13166
7/8
02-78414
02-78412
02-78434
02-785
02-78514
02-78512
02-78534
02-786
15/16
02-1516414
02-1516412
02-1516434
02-15165
02-1516514
02-1516512
02-1516534
02-15166
1
02-11310
02-11710]
02-11910
02-15
02-1514
02-1512
02-1534
02-16
1-1/8
02-118414
02-118412
02-118434
02-1185
02-118514
02-118512
02-118534
02-1186
1-1/4
02-114414
02-114412
02-114434
02-1145
02-114514
02-114512
02-114534
02-1146
1-1/2
02-112414
02-112412
02-112434
02-1125
02-112514
02-112512
02-112534
02-1126
1-5/8
-
-
02-158434
02-1585
02-158514
02-158512
02-158534
-


Thick
(Inches)
WIDTH (Inches)
6-1/4
6-1/2
6-3/4
7
7-1/4
7-1/2
1/2
-
-
-
02-127
-
-
3/4
02-34614
02-34612
02-34634
02-347
02-34714
02-34712
13/16
02-1316614
02-1316612
02-1316634
02-13167
02-1316714
02-1316712
7/8
2-78614
02-78612
02-78634
02-787
02-78714
02-78712
15/16
02-1516614
02-1516612
02-1516634
02-15167
02-1516714
02-1516712
1
02-1614
02-1612
02-1634
02-17
02-1714
02-1712
1-1/8
02-118614
02-118612
02-118634
02-1187
02-118714
02-118712
1-1/4
02-114614
02-114612
02-114634
02-1147
02-114714
02-114712


Thick
(Inches)
WIDTH (Inches)
7-3/4
8
8-1/4
8-1/2
8-3/4
9
5/16
-
-
-
-
02-516834
02-5169
1/2
02-12414
02-12412
02-12434
02-125
02-12514
02-12512
11/16
-
-
-
-
-
02-11169
3/4
02-34734
02-348
02-34814
02-34812
02-34834
02-349
13/16
02-1316734
02-13168
02-1316814
02-1316812
02-1316834
02-13169
7/8
02-78734
02-788
02-78814
02-78812
02-78834
02-789
15/16
02-1516734
02-15168
02-1516814
02-1516812
02-1516834
02-15169
1
02-1734
02-18
02-00216
02-00217
02-00218
02-19
1-1/8
02-118734
02-1188
02-118814
02-118812
02-118834
02-1189
1-1/4
02-114734
02-1148
02-114814
02-114812
02-114834
02-1149

Reviews

I was pleasantly surprised with the quality of this spruce board. The grain was exceptionally tight and straight , and the nominal measurements were right on the money. Furthermore, their customer service was outstanding. I look forward to conducting business with this company in the future.

Rodney B
February 19, 2021

After the first shipment was broken in two by UPS, the second shipment was fast and arrived in great condition.

Iain G
February 1, 2021

Excellent product. But very long lead time.

Stephen S
December 24, 2020

Thank you for your 5 star service! Especially Bernadette, who has been very Pleasant and helpful ! Chuck

Chuck B
October 22, 2020

A beautiful piece of wood. Exactly what I needed for my project.

John K
May 23, 2020

Great quality, great price, very fast delivery. If you know how to re-saw this is a very economical way to get wood for guitar tops.

Rick C
May 8, 2020

Got just what I needed/good wood

Alan G
April 10, 2020

Excellent product. I ordered 2 pieces of 3/4 x 5 3/4 x 14 and 2 pieces of 3 3/4 x 14. Shipping was as they advised, 3 weeks, but the spars are flawless.

Gary B
April 6, 2020

All the wood I have been getting these last few weeks is excellent. Very nice grain and milled nicely too.

Byron
March 28, 2020

A very nice piece of wood. Exactly what I needed for my project.

John K
January 16, 2020

Q&A

Please note, Aircraft Spruce Australia's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce Australia assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: I don't see anywhere to add the length of the piece of wood? on the thickness and width.

After selecting the thickness and width from the drop down selectors, use the quantity box for length. This material is sold by the foot so the unit of measure for quantity is feet.

Q: For potential customers who might be inquiring into the suitability of this wood as an affordable alternative to more expensive tonewood quality spruce (for musical instrument making), what species of spruce does this stock come from?

Sitka Grade A Spruce

Q: Which way is the grain on these charts? Is it quarter sawn when the thickness is the vertical dimension and the width horizontal, or the other way around?

It is quarter sawn, with the grain vertical along the thickness of the wood.

Q: What Mil Spec is this spruce?

All of our Spruce material is grade A Sitka Spruce and meets MIL-S-6073. The spar material is at the high end of this specification, and capstrip & longerons are at a lower end of this specification. The capstrip can be made with the spar quality material but must be requested at the time of order and will have special pricing.

Q: Can you clarify the dimensions for ordering spar stock? If we order S2 the dimensions are nominal, but if S4 dimensions, they are exact? Thank you!

The thickness of spar material is as close as possible for both S2 and S4. The spar width for S2 is nominal, and S4 width is as close as possible, to the selected dimension.

Q: What is the weight per foot on part no. 02-1125?

Approx 3 lbs.

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