Harvesting & Storage > Grain Storage
2.66 GSI Farm Bin Photograph

The Grain Systems "Narrow" series farm bins and silos are the original Grain Systems grain bin/silo line. A unstiffened series , this line is a popular choice throughout the United States. With 32"(813 mm) tall sheets it is easy to construct and is built from the strongest steel used in the grain bin and silo construction industry.

Grain Systems "Narrow" Series Features:

  • ASTM A653 SQ Grade 40 (55,000 psi tensile) Steel used for the roof panels and 18 gauge and thinner sidewall.
  • ASTM A653 SQ Grade 50 (65,000 psi tensile) Steel used for 17 gauge and thicker sidewall.
  • Grain Systems's patented two ring door, standard in all bins up to 12 rings tall.
  • Plenum punching for standard floor location and for other floor heights when ordered.
  • Roof panels pre-punched for the Grain Systems Slimline roof vent.
  • Roof manway access and roof ladder.
  • Large Center Dome cap.

The "Narrow" series is produced in three series, the NSL series for general storage and drying, the NHL series for more aggressive drying (and in certain cases the use of multi-auger stirring devices), and the NRL series for use with grain recirculating systems. For more information on each series and its application please visit our FAQ section on the farm storage bins and silos.

15 ft. (4.57 meter) Diameter 2.66" Corrugation Unstiffened Farm Tank Capacities

Series

Dia.

Ring

Eave Height (ft.)

Peak Height (ft.)

Max. Bushel Capacity

Max. Cubic Feet

Metric Tons 800kg/m^3

Metric Tons 721kg/m^3

Metric Tons 640kg/m^3

Eave Height (meters)

Peak Height (meters)

Max. Cubic Meters

NSL

15

4

10'-10"

14'-10"

1779

2108

50

45

40

3.30

4.52

59

NSL

15

5

13'-5"

17'-6"

2172

2574

61

55

48

4.09

5.33

72

NSL

15

6

16'-2"

20'-2"

2566

3041

72

65

57

4.93

6.96

86

NSL

15

7

18'-9"

22'-10"

2959

3507

83

75

66

5.74

7.49

99

18 ft. (5.49 meter) Diameter 2.66" Corrugation Unstiffened Farm Tank Capacities

Series

Dia.

Ring

Eave Height (ft.)

Peak Height (ft.)

Max. Bushel Capacity

Max. Cubic Feet

Metric Tons 800kg/m^3

Metric Tons 721kg/m^3

Metric Tons 640kg/m^3

Eave Height (meters)

Peak Height (meters)

Max. Cubic Meters

NSL

18

4

10'-10"

15'-8"

2616

3100

73

66

58

3.30


 

4.78

87

NSL

18

5

13'-5"

18'-4"

3182

3771

89

80

71

4.09

5.59

106

NSL

18

6

16'-2"

21'-0"

3749

4443

105

95

84

4.93

6.40

125

NSL

18

7

18'-9"

23'-8"

4315

5114

121

109

97

5.74

7.21

144

NSL

18

8

21'-6"

26'-4"

4882

5786

137

124

110

6.55

8.03

163

NSL

18

9

24'-2"

29'-0"

5448

6457

153

138

122

7.37

8.84

182

NSL

18

10

26'-9"

31'-8"

6015

7129

169

152

135

8.15

9.65

201

NSL

18

11

29'-6"

34'-4"

6581

7799

185

167

148

8.99

10.46

220

NSL

18

12

32'-2"

37'-0"

7148

8471

201

181

161

9.80

11.28

239

21 ft. (6.4 meter) Diameter 2.66" Corrugation Unstiffened Farm Tank Capacities

Series

Dia.

Ring

Eave Height (ft.)

Peak Height (ft.)

Max. Bushel Capacity

Max. Cubic Feet

Metric Tons 800kg/m^3

Metric Tons 721kg/m^3

Metric Tons 640kg/m^3

Eave Height (meters)

Peak Height (meters)

Max. Cubic Meters

NSL

21

5

13'-5"

19'-2"

4404

5219

124

111

99

4.09

5.84

147

NSL

21

6

16'-2"

21'-10"

5176

6134

146

131

116

4.93

6.65

173

NSL

21

7

18'-9"

24'-6"

5947

7048

167

151

134

5.74

7.47

199

NSL

21

8

21'-6"

27'-2"

6718

7962

189

170

151

6.55

8.28

225

NSL

21

9

24'-2"

29'-10"

7489

8876

211

190

168

7.37

9.09

251

NSL

21

10

26'-9"

32'-6"

8260

9789

233

209

186

8.15

9.91

277

NSL

21

11

29'-6"

35'-2"

9031

10703

254

229

203

8.99

10.72

303

NSL

21

12

32'-2"

37'-10"

9802

11617

276

248

221

9.80

11.53

328

24 ft. (7.32 meter) Diameter 2.66" Corrugation Unstiffened Farm Tank Capacities

Series

Dia.

Ring

Eave Height (ft.)

Peak Height (ft.)

Max. Bushel Capacity

Max. Cubic Feet

Metric Tons 800kg/m^3

Metric Tons 721kg/m^3

Metric Tons 640kg/m^3

Eave Height (meters)

Peak Height (meters)

Max. Cubic Meters

NSL

24

5

13'-5"

20'-1"

5848

6931

164

148

131

4.09

6.12

196

NSL

24

6

16'-2"

22'-9"

6856

8125

193

174

154

4.93

6.93

230

NSL

24

7

18'-9"

25'-5"

7863

9319

221

199

177

5.74

7.75

263

NSL

24

8

21'-6"

28'-1"

8870

10512

250

225

200

6.55

8.56

297

NSL

24

9

24'-2"

30'-9"

9877

11706

278

250

222

7.37

9.37

331

NSL

24

10

26'-9"

33'-5"

10884

12899

307

276

245

8.15

10.19

365

NSL

24

11

29'-6"

36'-1"

11891

14093

335

302

268

8.99

11.00

399

NSL

24

12

32'-2"

38'-9"

12898

15286

363

327

290

9.80

11.81

432

27 ft. (8.23 meter) Diameter 2.66" Corrugation Unstiffened Farm Tank Capacities

Series

Dia.

Ring

Eave Height (ft.)

Peak Height (ft.)

Max. Bushel Capacity

Max. Cubic Feet

Metric Tons 800kg/m^3

Metric Tons 721kg/m^3

Metric Tons 640kg/m^3

Eave Height (meters)

Peak Height (meters)

Max. Cubic Meters

NSL

27

5

13'-5"

20'-11"

7523

8916

212

191

169

4.09

6.38

252

NSL

27

6

16'-2"

23'-7"

8798

10427

248

223

198

4.93

7.19

295

NSL

27

7

18'-9"

26'-3"

10072

11937

284

255

227

5.74

8.00

338

NSL

27

8

21'-6"

28'-11"

11347

13448

320

288

255

6.55

8.81

380

NSL

27

9

24'-2"

31'-7"

12622

14959

356

320

284

7.37

9.63

423

NSL

27

10

26'-9"

34'-3"

13896

16469

392

352

313

8.15

10.44

466

NSL

27

11

29'-6"

36'-11"

15171

17980

428

385

342

8.99

11.25

509

NSL

27

12

32'-2"

39'-7"

16445

19490

463

417

370

9.80

12.07

551

30 ft. (9.14 meter) Diameter 2.66" Corrugation Unstiffened Farm Tank Capacities

Series

Dia.

Ring

Eave Height (ft.)

Peak Height (ft.)

Max. Bushel Capacity

Max. Cubic Feet

Metric Tons 800kg/m^3

Metric Tons 721kg/m^3

Metric Tons 640kg/m^3

Eave Height (meters)

Peak Height (meters)

Max. Cubic Meters

NSL

30

5

13'-5"

21'-9"

9437

11184

266

239

212

4.09

6.63

316

NSL

30

6

16'-2"

24'-5"

11011

13050

310

279

248

4.93

7.44

369

NSL

30

7

18'-9"

27'-1"

12584

14914

355

319

283

5.74

8.26

422

NSL

30

8

21'-6"

29'-9"

14158

16779

399

359

319

6.55

9.07

475

NSL

30

9

24'-2"

32'-5"

15732

18645

443

399

354

7.37

9.88

527

NSL

30

10

26'-9"

35'-1"

17305

20509

488

439

390

8.15

10.69

580

NSL

30

11

29'-6"

37'-9"

18879

22374

532

479

425

8.99

11.51

633

NSL

30

12

32'-2"

40'-5"

20453

24240

577

519

461

9.80

12.32

686

NSL

30

13

34'-10"

43'-1"

22027

26097

621

558

497

10.62

13.13

739

NSL

30

14

37'-5"

45'-9"

23601

27971

665

599

532

11.43

13.94

792

NSL

30

15

40'-2"

48'-5"

25175

29837

710

639

568

12.24

14.76

854

33 ft. (10.06 meter) Diameter 2.66" Corrugation Unstiffened Farm Tank Capacities

Series

Dia.

Ring

Eave Height (ft.)

Peak Height (ft.)

Max. Bushel Capacity

Max. Cubic Feet

Metric Tons 800kg/m^3

Metric Tons 721kg/m^3

Metric Tons 640kg/m^3

Eave Height (meters)

Peak Height (meters)

Max. Cubic Meters

NSL

33

5

13'-5"

23'-0"

11600

13748

327

294

261

4.09

7.01

389

NSL

33

6

16'-2"

25'-8"

13504

16004

380

343

304

4.93

7.82

453

NSL

33

7

18'-9"

28'-4"

15408

18261

434

391

347

5.74

8.64

5.17

NSL

33

8

21'-6"

31'-0"

17312

20517

488

439

390

6.55

9.45

580

NSL

33

9

24'-2"

33'-8"

19216

22774

542

488

433

7.37

10.26

644

NSL

33

10

26'-9"

36'-4"

21120

25030

595

536

476

8.15

11.07

708

NSL

33

11

29'-6"

39'-0"

23024

27287

649

584

519

8.99

11.89

772

NSL

33

12

32'-2"

41'-8"

24929

29544

703

633

562

9.80

12.70

836

NSL

33

13

34'-10"

44'-4"

26833

31802

756

681

605

10.62

13.51

901

NSL

33

14

37'-5"

47'-0"

28737

34058

810

730

648

11.43

14.33

964

NSL

33

15

40'-2"

49'-8"

30641

36315

864

777

691

12.24

15.14

1028

36 ft. (10.97 meter) Diameter 2.66" Corrugation Unstiffened Farm Tank Capacities

Series

Dia.

Ring

Eave Height (ft.)

Peak Height (ft.)

Max. Bushel Capacity

Max. Cubic Feet

Metric Tons 800kg/m^3

Metric Tons 721kg/m^3

Metric Tons 640kg/m^3

Eave Height (meters)

Peak Height (meters)

Max. Cubic Meters

NSL

36

5

13'-5"

23'-10"

14020

16616

395

356

316

4.09

7.01

470

NSL

36

6

16'-2"

26'-6"

16286

19301

459

413

367

4.93

8.08

546

NSL

36

7

18'-9"

29'-2"

18552

21987

523

471

418

5.74

8.89

622

NSL

36

8

21'-6"

31'-10"

20818

24672

587

528

469

6.55

9.70

698

NSL

36