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New Products [more]
Pathfinder Launch Set
$44.99
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All Body Tubes
All Body Tubes
BT-5-18
Body Tube - BT-5 - 18" Long - Model Rocket Part
This is a standard BT-5 diameter kraft body tube. Length: 18 inches Inside Diameter: 0.518 inches Outside Diameter: 0.544 inches
Model: BT-5-18
83 Units in Stock
$1.80
In Stock: 83
BT5-30
Body Tube - BT-5 - 30" Long (Package of 5) - Model Rocket Part
These model rocket body tube are BT-5 size. Inside Diameter: .518 inches (13.16mm) Outside Diameter: .545 inches (13.84mm) Length: 30 inches (762mm)...
Model: BT5-30
12 Units in Stock
$9.99
In Stock: 12
3084
Estes Package of Four BT-5 Body Tubes - 18" Long
This package includes four genuine Estes brand spiral-wound paper body tubes. Length: 18 inches Inside Diameter: 0.518 inches Outside Diameter: 0.544...
Model: 3084
4 Units in Stock
$11.29
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In Stock: 4
BT-20-18
Body Tube - BT-20 - White - 18" Long - Model Rocket Part
This is a standard BT-20 diameter kraft white model rocket body tube. Length:18 inches Inside Diameter: 0.710 inches Outside Diameter: 0.736 inches
Model: BT-20-18
15 Units in Stock
$2.00
In Stock: 15
BT20-12
Body Tube - BT-20 - White - 12" Long (Package of 5)- Model Rocket Part
This is a standard BT-20 diameter kraft white model rocket body tube. Length:12 inches Inside Diameter: 0.710 inches Outside Diameter: 0.738 inches
Model: BT20-12
11 Units in Stock
$9.00
In Stock: 11
BT-20-18-B
Body Tube - BT-20 - Brown - 18" Long (Package of 5) - Model Rocket Part
This is a package of five standard BT-20 diameter kraft brown model rocket body tubes. Length:18 inches Inside Diameter: 0.710 inches Outside...
Model: BT-20-18-B
15 Units in Stock
$9.99
In Stock: 15
3085
Estes Package of Four BT-20 Body Tubes - 18" Long - Model Rocket Part
This package includes four genuine Estes brand spiral-wound paper body tubes. Length: 18 inches Inside Diameter: 0.710 inches Outside Diameter: 0.73...
Model: 3085
13 Units in Stock
$10.29
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In Stock: 13
BT-20H
Odd'l Rockets Body Tube - BT-20 Heavy - Brown - 18" Long - Model Rocket Part
This is a heavy-duty version of the BT-20 body tube. It is much stronger than a standard BT-20 and slightly larger in outside diameter. A standard BT-...
Model: BT-20H
49 Units in Stock
$2.40
In Stock: 49
BT-50-18
Body Tube - BT-50 - 18" Long - Model Rocket Part
This is a standard BT-50 diameter kraft white model rocket body tube for constructing your own designs. Length:18 inches Inside Diameter: 0.950...
Model: BT-50-18
13 Units in Stock
$2.15
In Stock: 13
BT-50-30
Body Tube - BT-50 - 30" Long (Package of 5) - Model Rocket Part
This is a package of fice standard BT-50 diameter kraft white model rocket body tubes for constructing your own designs. Length: 30.0 inches Inside...
Model: BT-50-30
5 Units in Stock
$14.99
In Stock: 5
Monthly Specials For July
Body Tube Specifications
| Name | ID (in) | ID (mm) | OD (in) | OD (mm) | Wall (in) | Wall (mm) |
|---|---|---|---|---|---|---|
| BT-5 | 0.5180 | 13.1572 | 0.5440 | 13.8176 | 0.0260 | 0.6604 |
| BT-20 | 0.7100 | 18.0340 | 0.7360 | 18.6944 | 0.0260 | 0.6604 |
| BT-20H | 0.7100 | 18.0340 | 0.7520 | 19.1008 | 0.0420 | 1.0668 |
| BT-50 | 0.9500 | 24.1300 | 0.9760 | 24.7904 | 0.0260 | 0.6604 |
| BT-50H | 0.9500 | 24.1300 | 0.9800 | 24.8920 | 0.0300 | 0.7620 |
| TT-50 | 0.9880 | 25.0952 | 1.0280 | 26.1112 | 0.0400 | 1.0160 |
| BT-29 (29mm) | 1.1400 | 28.9560 | 1.2100 | 30.7340 | 0.0700 | 1.7780 |
| BT-55 | 1.2830 | 32.5882 | 1.3250 | 33.6550 | 0.0420 | 1.0668 |
| TT-55 | 1.3400 | 34.0360 | 1.3850 | 35.1790 | 0.0450 | 1.1430 |
| BT-60 | 1.5950 | 40.5130 | 1.6370 | 41.5798 | 0.0420 | 1.0668 |
| BT-1.9 | 1.8000 | 45.7200 | 1.8900 | 48.0060 | 0.0900 | 2.2860 |
| PS II 2-inch | 1.9200 | 48.7680 | 2.0000 | 50.8000 | 0.0800 | 2.0320 |
| BT-70 | 2.1750 | 55.2450 | 2.2170 | 56.3118 | 0.0420 | 1.0668 |
| BT-70H | 2.1660 | 55.0164 | 2.2180 | 56.3372 | 0.0520 | 1.3208 |
| PS II 2.5-inch | 2.4200 | 61.4680 | 2.5000 | 63.5000 | 0.0800 | 2.0320 |
| BT-80 | 2.5600 | 65.0240 | 2.6000 | 66.0400 | 0.0400 | 1.0160 |
| BT-80H | 2.5600 | 65.0240 | 2.6110 | 66.3194 | 0.0510 | 1.2954 |
| PS II 3-inch | 2.9200 | 74.1680 | 3.0000 | 76.2000 | 0.0800 | 2.0320 |
| BT-101 | 3.8960 | 98.9584 | 3.9380 | 100.0252 | 0.0420 | 1.0668 |
| PS II 4-inch | 3.9200 | 99.5680 | 4.0000 | 101.6000 | 0.0800 | 2.0320 |
Most body tubes are made from spiral-wound kraft paper. White kraft body tubes are made from paper that has been bleached white. Brown or gray (the color may vary) tubes are made from unbleached kraft paper.
Standard body tube sizes are based on the inner diameter (ID) of the tube. The outer diameter (OD) and the wall thickness (Wall) depend on how many layers of paper are wound around the tube. "Heavy" body tubes have one or more extra layers of paper resulting in a thicker wall.