DIYPLANS.org
Menu

Natural rail hunter's jump

Six natural-timber rails with four-sided support beneath each standard.

Download Plan

Sign in with your email to download these files for free.

Download AllZIP · All individual files for this configurationEditable FreeCAD modelFCSTD · 48 editable solids: posts, arms, pole bodies and illustrative base hardware. Informational dimension sheet.STEP modelSTEP · Matching exchange geometry with four-arm bases, post bores and generic connector envelopes.Timber part sizes CSVCSV · Two posts, six provisional pole blanks and eight tapered support arms.Indicative materials CSVCSV · Timber stock allocation and counts for the illustrated bolt, washer and nut envelopes; actual products are not selected.Component schedule CSVCSV · 48 individual modeled solids, with bounds, volumes, material roles and notes.Complete plan packageZIP · Matching cleaned FreeCAD and STEP models with the CSV schedules. Instructions and drawings are on the website.
View Instructions
  • Revision: 6
  • Last updated:
  • Steps: 5
  • Difficulty: intermediate
  • License: Owner-confirmed permission to publish; no attribution required
Before you start
  • Use this dimensioned concept to study proportions and base connections. It has no established load, tipping, anchorage or riding-use rating.
  • Base holes and hardware are an illustrative attachment layout, not selected structural products. Threads, material grade, tightening and connection capacity are unspecified.
  • The poles remain body-only geometry. Closed post slots would retain upper rails; the model does not establish a freely falling rail system.
  • The 126 in pole blank remains provisional. Flush full-depth ends through 3 1/2 in posts would require 127 in before allowance; neither is a final rail joint.
Plan details

Natural rail horse jump plans

Two 54-inch standards frame six 120-inch pole bodies. Each standard now has a 36 x 36-inch four-arm base, with a board on every post face and illustrated through-bolt connections. The same support arrangement is present when all poles are removed. This is a visual design reference, not a construction plan.

Two 54-inch standards frame six 120-inch pole bodies. Each standard now has a 36 x 36-inch four-arm base, with a board on every post face and illustrated through-bolt connections. The same support arrangement is present when all poles are removed. Dimensioned drawings, editable models, an isolated standard and poles-removed views document the four-sided bases.

Open the native model to inspect or edit individual solids. The dimension sheet is informational and does not regenerate geometry.

Hide the six N02 pole-body objects to see both complete standards, or hide one standard to inspect the other. Every base has four arms and four illustrated bolt sets.

The STEP export matches the native solids. Rail joints and release hardware remain absent; base hardware is depicted as generic unthreaded envelopes.

Save a separate study copy and update drawings and schedules with any geometry changes.

Dimensions and opening sizes
Clear opening between postsIllustrated geometry; footprint is a bounding extent, not a capacity rating.
120 in
Post heightIllustrated geometry; footprint is a bounding extent, not a capacity rating.
54 in
Each base, left to rightIllustrated geometry; footprint is a bounding extent, not a capacity rating.
36 in
Each base, front to backIllustrated geometry; footprint is a bounding extent, not a capacity rating.
36 in
Individual arm lengthIllustrated geometry; footprint is a bounding extent, not a capacity rating.
19 3/4 in
Overall assembly lengthIllustrated geometry; footprint is a bounding extent, not a capacity rating.
159 1/2 in
Highest illustrated rail topIllustrated geometry; footprint is a bounding extent, not a capacity rating.
48 in
Shopping list
Download shopping list
BuyMaterialStock size
1 board4 x 4 lumber10 ft
6Sound natural poles, 3-4 in diameterAt least 11 ft
2 board2 x 6 lumber8 ft
8Illustrative through bolts3/8 in; 7 in under head shown
16Illustrative washers1 in OD x 1/16 in thick shown
8Illustrative nuts3/8 in; 5/16 in thick shown
Quantity notes

Indicative timber allocation and illustrated connector quantities only. Selected hardware products, coatings, ground anchors and installation materials are outside this reference.

  • 4 x 4 lumber, 10 ft: Two 54 in post blanks; allow saw kerfs and end trimming.
  • Sound natural poles, 3-4 in diameter, At least 11 ft: 126 in provisional blanks. Species, defects and final pole-end geometry are not specified.
  • 2 x 6 lumber, 8 ft: Four 19 3/4 in arms per board total 79 in, plus 3/8 in for three interior kerfs; eight arms total.
  • Illustrative through bolts, 3/8 in; 7 in under head shown: Generic unthreaded envelopes. Dimensions illustrate the attachment; select actual hardware separately.
  • Illustrative washers, 1 in OD x 1/16 in thick shown: Two per bolt; 7/16 in modeled bore. No manufacturer specification or capacity assigned.
  • Illustrative nuts, 3/8 in; 5/16 in thick shown: 9/16 in flats in model, no threads. Verify actual thread engagement and compatibility.
Tools & equipment
  • FreeCAD for editing the native solid model
  • STEP-compatible CAD software for exchange geometry

BEFORE YOU BUILD

Use this work at your own risk

These files have not been checked for accuracy, safety, structural adequacy, or building-code compliance. They may contain serious errors and are not construction-ready. Obtain independent qualified design and review before building.

No person or organization makes any guarantee or warranty, express or implied, regarding this design, its documentation, digital files, or website views. They are not professional services and do not create an architect-client or other professional-client relationship. No promise is made about accuracy, completeness, reliability, code compliance, or fitness for your project.

Buildings and building projects are complex, and many things can go wrong. You are responsible for checking dimensions and site conditions, choosing suitable materials and methods, obtaining permits, following codes and manufacturer instructions, and getting qualified professional help when needed. To the fullest extent permitted by law, DIYPlans.org disclaims liability for damages resulting from use of this work. Read the FAQ about your responsibilities.

Instructions

Download

Step 1 Read the four-sided base

  • Each standard has one 19 3/4 in arm on each of its four faces. The arms rotate around the post in a pinwheel, giving a 36 x 36 in bounding footprint without crossing boards. All arm bottoms and the post base share the ground plane.

Check: Find four arms on each standard, with support extending in both horizontal directions.

Step 2 See the standards without poles

  • The poles-removed view shows both complete standards. Their four-arm bases and depicted through-bolt attachments are unchanged by pole removal. Ground contact is the four narrow arm strips and post, not a solid square platform.

Check: Identify the clear gap between the two independent bases and the flat contact beneath every arm.

Step 3 Inspect the illustrated base connections

  • Each standard has four bolt sets. The X-directed axes are 1 1/4 and 3 1/4 in above ground; the Y-directed axes are 2 1/4 and 4 1/4 in above ground. Each axis passes through two opposed arms and the post, a 6 1/2 in wood stack.

Check: Locate two bores in each arm and check that the perpendicular bore pairs sit at different heights.

Step 4 Compare the rail positions

  • The six 120 in pole bodies have tops at 18, 24, 30, 36, 42 and 48 in. The drawings show uniform 3 1/2 in poles within the 3-4 in natural-pole range. Pole ends, post slots and release hardware are not modeled.

Check: The six rail positions are identified; their end connections remain unspecified.

Step 5 Explore a separate variation

  • Use the native CAD to study proportions, finishes or base details. Individual solids are editable; the dimension sheet is informational. Update drawings and quantities together if you change the geometry.

Check: Save a separate copy and record the dimensions changed.

Report a problem