How to Correct Out-of-Order Warp Threads While Threading Heddles

Check two things separately: which physical warp end comes next, and which shaft that end belongs on. An end can be selected correctly from the cross but put through a heddle on the wrong shaft. Conversely, the shaft sequence can look correct while two differently colored ends have exchanged positions.

Read the threading and warp-color instructions together. Weaver’s Craft explains that the threading draft specifies the heddle sequence and that the warp-color order corresponds to the same positions across the warp. Before correcting anything, establish your reading direction and mark the last position you have verified. Weaver’s Craft: Weaving Hints & Tips

Confirm that you are using the threading cross rather than a grouped counting cross. Ashford’s warping-frame instructions distinguish a threading cross that separates individual threads from a raddle cross that holds groups. A group count alone cannot identify every end’s individual position. Ashford: Warping Frame—Large instructions

Leave the lease sticks in the threading cross and secure their ends so they cannot slide out during the correction. In Ashford’s Brooklyn loom instructions, the cross sticks are supported and secured before the threading-cross tie is removed. Follow your loom’s arrangement for supporting them. Ashford: Learn to weave on the Brooklyn Four Shaft Loom

Prepare your threading hook, draft, a movable marker and some scrap yarn. Tie completed, checked ends into separate bundles so that opening the suspect group does not release neighboring work. Handwoven’s threading instructions recommend securing threaded ends in bundles as work proceeds. Warping a Loom, Part 3: Sleying and Threading

Use a pencil note to record the last verified end number or repeat boundary. This is a practical bookkeeping aid: it gives you a definite restart point if the loose ends or repeated shaft numbers become difficult to distinguish. Keep the suspect group separate from the unthreaded remainder.

Begin at a known correct position and trace each end between its place in the cross and its heddle eye. Compare the physical end, its color where relevant, and its shaft assignment. Continue until you find the first mismatch. The following decision aid applies the distinction between thread order and shaft assignment to common threading mistakes.

What you find	What to undo	Where to restart
Two neighboring ends were selected in reverse order	Withdraw both ends from their heddle eyes	The first of those two positions
One end was skipped, and later ends were assigned the following draft positions	Undo the affected sequence back to the skipped end	The skipped end’s draft position
The correct end passes through the wrong shaft	Withdraw that end and locate an available heddle in the correct position	That end’s position, then check its neighbors
You cannot identify where the sequence became incorrect	Open the suspect bundle and check it from its last verified boundary	The first mismatch you can establish

Treat the table as a correction strategy, rather than a reason to undo a fixed number of ends. An exchanged pair may be a local mistake. A skipped end can shift every subsequent assignment until the sequence was deliberately restarted. Checking only the spot where you noticed the problem may leave the earlier error in place.

Also verify that your instructions provide an actual threading draft. Schacht specifically advises checking that a draft used for threading is not merely a profile draft. Schacht: I’m not getting a shed on my Wolf loom or Standard Floor Loom—is there an easy fix?

The following sequence is a practical synthesis of threading from the cross, following the draft and checking small groups. Work only as far back as necessary to reach your verified restart point.

1. Open the suspect bundle. Leave neighboring checked bundles tied.
2. Withdraw the affected free ends from their heddle eyes. Work back toward the first incorrect position, leaving their paths through the lease sticks intact.
3. Locate the next end at the cross. Trace it to its free tip instead of choosing whichever tip lies nearest your hand.
4. Read its draft position. Confirm the intended color and shaft before passing it through the heddle eye.
5. Continue in the same direction. Select the next end from the cross and advance the draft marker by one position.
6. Check the corrected section before tying it. Compare every end with the draft, then secure the finished group.

Ashford demonstrates taking successive ends through the heddles according to the draft and checking each small group during threading. Its manual also calls for checking the required heddle count on each shaft before starting. If a correction leaves you without a suitable heddle, resolve that requirement before continuing the sequence. Ashford: Learn to weave on the Brooklyn Four Shaft Loom

For an ordinary draft, expect one end per heddle unless the instructions explicitly specify otherwise. Handwoven notes that some drafts intentionally treat several threads as one warp end; those are exceptions that must be identified in the draft. Do not combine loose ends in one eye simply to make the count agree. Warping a Loom, Part 3: Sleying and Threading

Consider an illustrative four-end section. In your chosen threading direction, the draft calls for shafts 1, 2, 3, 4. Label the corresponding physical ends A, B, C, D on a paper note; these letters are only identifiers for this example.

You thread A onto shaft 1, accidentally leave B loose, then thread C onto shaft 2 and D onto shaft 3. The first three occupied heddles appear to follow 1–2–3, but the end identities are wrong. Putting B into the next heddle on shaft 4 would preserve that mistake.

Keep A in place after verifying it. Withdraw C and D from their heddle eyes, retain all four ends in the cross, and restart with B at the second draft position. Thread B onto shaft 2, C onto shaft 3 and D onto shaft 4. Check the following section too if you continued threading after D.

This example shows why counting occupied heddles is only one check. Correcting a skipped end requires matching each physical end to its intended draft position, rather than filling the next available eye.

Identify which side of the heddles controls the existing order before withdrawing ends. In Schacht’s back-to-front sequence, the warp is beamed and the heddles are threaded from the cross before the reed is threaded. In its front-to-back sequence, the reed is threaded before the heddles. Schacht: What is the best way to warp my shaft loom?

For a front-to-back correction, preserve the ends’ established reed positions while removing them from the heddles. Pay particular attention to individual order when several ends share a dent: the dent identifies their group, but choosing the dangling tips arbitrarily may exchange their sequence.

Madelyn van der Hoogt explains that differing selection order within shared dents can introduce twisting between reed and heddles. Her instructions describe transferring an intact cross through the reed using a third lease stick, replacing each original stick in turn. If you need that arrangement to identify ends reliably, follow the full transfer procedure before resuming threading. This preserves order without changing the planned reed spacing. Handwoven: Ask Madelyn—Preventing Warp Tangles

Check the repaired group against the draft one end at a time. Verify end identity, color sequence and shaft number; then check its boundary with the next group. A useful stopping point is a complete repeat whose beginning and end you can identify on both the loom and the paper.

Compare the group’s total end count and shaft counts with the draft. Weaver’s Craft recommends checking both total warp ends and heddle counts against the threading instructions. Counts support the inspection, but an exchanged pair can still have the correct totals. Weaver’s Craft: Weaving Hints & Tips

Once the corrected section matches, tie it into a checked bundle and move your marker to the next unthreaded position. Keep the cross available until the remaining threading has been verified. A clear restart point, controlled loose ends and an end-by-end comparison let you finish the correction without losing your place again.

• Peggy’s Weaving Tips > Why make two crosses (leases)? — Peggy Osterkamp
• Warping Frame—Large: Instructions — Ashford
• Learn to weave on the Brooklyn Four Shaft Loom — Ashford
• Weaving Hints & Tips — Weaver’s Craft
• Warping a Loom, Part 3: Sleying and Threading — Handwoven
• Ask Madelyn: Preventing Warp Tangles — Handwoven
• What is the best way to warp my shaft loom? — Schacht Spindle Company
• I’m not getting a shed on my Wolf loom or Standard Floor Loom—is there an easy fix? — Schacht Spindle Company